2024

• Faglig foredrag
  Weman, Helge. (2024) III-V nanowire/graphene hybrid structures for applications in solar cells and UV LEDs. Invited talk , Lausanne 2024-06-12 - 2024-06-12
• Vitenskapelig foredrag
  Gupta, Dishiti; Nilsen, Tron Arne; Fimland, Bjørn Ove Myking; Weman, Helge. (2024) Improving the Efficiency of Top-emitting AlGaN Nanowire Photonic Crystal Laser by Structural Modification. NUSOD , New Delhi 2024-09-23 - 2024-09-26

2023

• Vitenskapelig foredrag
  Weman, Helge. (2023) III-V nanowire/graphene hybrid structures for applications in solar cells and UVC LEDs. EPFL Invited talk at EPFL , Lausanne 2023-06-14 - 2023-06-14
• Poster
  Li, Yang; Nilsen, Tron Arne; Baigarinova, Gulzhan; Gupta, Dishiti; Ren, Dingding; Fimland, Bjørn Ove Myking. (2023) Exploring graphene as buffer for gallium nitride nanowire growth on silicon. NTNU NANO Norwegian NanoSymposium 2023 , Trondheim 2023-11-28 - 2023-11-29
• Vitenskapelig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Weman, Helge; Fimland, Bjørn Ove Myking. (2023) Understanding the structure and composition of an annealed Pd/Ge/Au Contacts to n-GaAs Nanowires. Institue of Physics / EMAG Microscopy of Semiconducting Materials , Cambridge 2023-04-03 -
• Poster
  Li, Yang; Nilsen, Tron Arne; Baigarinova, Gulzhan; Gupta, Dishiti; Ren, Dingding; Fimland, Bjørn Ove Myking. (2023) GaN nanowires grown on Si by plasma-assisted molecular beam epitaxy using graphene as buffer . 14th Int. Conf. on Nitride Semiconductors , Fukuoka 2023-11-12 - 2023-11-17
• Vitenskapelig foredrag
  Weman, Helge. (2023) UV LEDs based on AlGaN nanowires grown on graphene. The 3rd Ultraviolet LED InternationalConference , Changzhi 2023-09-12 - 2023-09-14

2022

• Poster
  Ren, Dingding; Chen, Z.; Borisov, B.; Vullum, Per Erik; Nilsen, Julie Stene; Ahtapodov, Lyubomir. (2022) Growth and Characterization of InGaN/GaN Nanowires on Graphene Glass. Int. Workshop on Nitride Semiconductors , Berlin 2022-10-09 -
• Poster
  Li, Yang; Nilsen, Tron Arne; Mukherjee, Anjan; Ren, Dingding; Weman, Helge; Fimland, Bjørn Ove Myking. (2022) Selective area epitaxy of GaN nanowires on graphene substrates by plasma assisted molecular beam epitaxy. University of Sheffield and Institute of Physics, UK The 22nd International Conference on Molecular Beam Epitaxy , Sheffield 2022-09-04 - 2022-09-09
• Poster
  Ren, Dingding; Nilsen, Tron Arne; Nilsen, Julie Stene; Ahtapodov, Lyubomir; Mukherjee, Anjan; Li, Yang. (2022) MBE Growth of GaAsSb/GaAs Multiple Quantum Disk Nanowires on Few-layer Graphene for Photonic Applications. University of Sheffield and Institute of Physics, UK 22nd International Conference on Molecular Beam Epitaxy , Sheffield, UK 2022-09-04 - 2022-09-09
• Vitenskapelig foredrag
  Mukherjee, Anjan; Ren, Dingding; Vullum, Per Erik; Huh, Junghwan; Fimland, Bjørn Ove Myking; Weman, Helge. (2022) Axial GaAs/AlGaAs Nanowire Solar Cell on Si with Ultra-High Power-per-Weight Ratio. MRS Spring Meeting III-V Semiconductors for Energy Conversion Technologies , Honolulu (remote) 2022-05-23 - 2022-05-27
• Populærvitenskapelig foredrag
  Weman, Helge. (2022) Litt bakgrunn og historikk til opprinnelsen av CrayoNano. Styre NFR Muliggjørende teknologier Invitert til styremøte NFR Muliggjørende teknologier , Oslo (remote) 2022-04-06 - 2022-04-06
• Poster
  Li, Yang; Nilsen, Tron Arne; Liudi Mulyo, Andreas; Mukherjee, Anjan; Ren, Dingding; Weman, Helge. (2022) Selective area MBE growth of GaN nanowires on graphene/sapphire using a hole-patterned SiO2 mask. NTNU NANO The 1st TNNN Conference & Norwegian Nano Symposium 2022 , Trondheim 2022-11-30 - 2022-12-02
• Vitenskapelig foredrag
  Weman, Helge. (2022) III-V nanowire/graphene hybrid structures for applications in solar cells and UV LEDs. Semiconductor Society of India (SSI) Invited talk at Int. symp. on Semiconductor Materials and Devices , Bhubaneswar (remote) 2022-12-16 - 2022-12-18
• Poster
  Li, Yang; Nilsen, Tron Arne; Liudi Mulyo, Andreas; Ren, Dingding; Weman, Helge; Fimland, Bjørn Ove Myking. (2022) Selective area epitaxy of GaN nanowires on single-layer graphene substrates by molecular beam epitaxy. Int. Workshop on Nitride Semiconductors , Berlin 2022-10-09 -
• Vitenskapelig foredrag
  Weman, Helge. (2022) III-V nanowire/graphene hybrid structures for applications in solar cells and UV LEDs. EPFL-Lausanne Invited talk at EPFL , Lausanne 2022-06-13 - 2022-06-13

2021

• Vitenskapelig foredrag
  Weman, Helge. (2021) AlGaN nanowire UV LEDs using graphene as substrate and transparent electrode. EPFL Invited talk "Quantum Science and Condensed Matter Seminar" , Lausanne 2021-06-25 - 2021-06-25
• Intervju
  Mukherjee, Anjan; Fimland, Bjørn-Ove; Weman, Helge. (2021) Gallium arsenide nanowire solar cell with 7.7% efficiency. pv-magazine.com pv-magazine.com [Internett] 2021-11-09
• Intervju
  Mukherjee, Anjan; Fimland, Bjørn-Ove; Weman, Helge. (2021) New ultra-high material efficient, low-cost solar cells — using nanowires. Eurekalert.org Eurekalert.org [Internett] 2021-11-05
• Intervju
  Mukherjee, Anjan; Fimland, Bjørn-Ove; Weman, Helge. (2021) New ultra-high material efficient, low-cost solar cells — using nanowires. https://norwegianscitechnews.com/ https://norwegianscitechnews.com/ [Internett] 2021-11-05
• Vitenskapelig foredrag
  Weman, Helge. (2021) AlGaN nanowire UV LEDs using graphene as substrate and transparent electrode. MIT Invited talk "Epitaxy on 2D materials for layer release and their applications" , Virtual 2021-06-28 - 2021-06-30
• Populærvitenskapelig foredrag
  Weman, Helge. (2021) Nanowire/graphene UVC LEDs. Timini NTNU NTNU Nanokveld , Trondheim 2021-04-19 - 2021-04-19
• Populærvitenskapelig foredrag
  Weman, Helge. (2021) Litt bakgrunn og historikk til opprinnelsen av CrayoNano. IE fakultetet NTNU Feiring CrayoNano betaling av patenter fra NTNU , Trondheim 2021-12-22 - 2021-12-22
• Vitenskapelig foredrag
  Weman, Helge. (2021) AlGaN nanowire UV LEDs using graphene as a transparent conducting substrate. Indian Institute of Technology Delhi Invited talk "The XXIst International Workshop on the Physics of Semiconductor Devices (IWPSD 2021)" , New Delhi and on-line 2021-12-14 - 2021-12-17
• Vitenskapelig foredrag
  Weman, Helge. (2021) AlGaN nanowire UV LEDs using graphene as a transparent conducting substrate. China Solid State Lighting Alliance (CSA) Invited talk "The 7th International Forum on Wide Bandgap Semiconductors " , Shenzhen 2021-12-06 - 2021-12-08
• Poster
  LI, Yang; Nilsen, Tron Arne; Mukherjee, Anjan; Liudi Mulyo, Andreas; Fimland, Bjørn-Ove; Weman, Helge. (2021) Selective area growth of GaN nanowires on sapphire and graphene substrates by molecular beam epitaxy. CINVESTAV 21st International Conference on Molecular Beam Epitaxy , Puerto Vallarta and Virtual 2021-09-06 - 2021-09-09

2020

• Vitenskapelig foredrag
  Weman, Helge. (2020) AlGaN nanowire UV LEDs using graphene as substrate and transparent electrode . Indian Institute of Technology Delhi Invited talk 5th International Conference on Emerging Electronics , New Delhi and on-line 2020-11-26 - 2020-11-28

2019

• Poster
  Liudi Mulyo, Andreas; Rajpalke, Mohana; Vullum, Per Erik; Weman, Helge; Kishino, Katsumi; Fimland, Bjørn-Ove. (2019) The influence of AlN buffer layer on the growth of self-assembled GaN nanocolumns on graphene. Scuola Normale Superiore and Istituto Nanoscienze-CNR Nanowire Week 2019 , Pisa 2019-09-23 - 2019-09-27
• Vitenskapelig foredrag
  Mukherjee, Anjan; Mosberg, Aleksander Buseth; Ren, Dingding; Li, Yang; Ahtapodov, Lyubomir; Van Helvoort, Antonius. (2019) Radial Junction GaAs Nanowire Solar Cells: Towards Efficient Performance. NanoNetwork 10th Annual NanoNetwork conference , Tromsø 2019-06-17 - 2019-06-19
• Vitenskapelig foredrag
  Liudi Mulyo, Andreas; Kim, Dong Chul; Høiaas, Ida Marie; Ahtapodov, Lyubomir; Weman, Helge; Kishino, Katsumi. (2019) Utilization of Graphene as Substrate and Bottom Electrode for High-Density and Vertically-Aligned GaN/AlGaN Nanocolumns in Light-Emitting Diodes in the UV-A. 10th annual workshop on Norwegian PhD Network on Nanotechnology for Microsystems , Tromsø 2019-06-17 - 2019-06-19
• Poster
  Liudi Mulyo, Andreas; Rajpalke, Mohana Krishnappa; Vullum, Per Erik; Weman, Helge; Kishino, Katsumi; Fimland, Bjørn-Ove. (2019) The Influence of AlN Buffer Layer on the Growth of Self-Assembled GaN Nanocolumns on Graphene. Material Research Society The 13th International Conferences on Nitride Semiconductors , Bellevue, Washington (Seattle) 2019-07-07 - 2019-07-12
• Poster
  Ren, Dingding; Chen, Z; Nilsen, Julie Stene; Ahtapodov, Lyubomir; Borisov, B.; Mukherjee, Anjan. (2019) Epitaxially Grown InGaN/GaN Nanowires on Graphene Glass. 13th International Conference on Nitride Semiconductors 2019 (ICNS-13) , Bellevue 2019-07-07 - 2019-07-12
• Vitenskapelig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, A Mazid; Dheeraj, Dasa; Weman, Helge; Fimland, Bjørn-Ove. (2019) Contacting nanostrusctures: detailed characterisation of the Au/Ge/GaAs nanowire interface. IoP Microscopy of Semiconducting Materials (MSM-XXI) , Cambridge 2019-04-09 - 2019-04-12
• Vitenskapelig foredrag
  Ren, Dingding; Ahtapodov, Lyubomir; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2019) Crystal phase engineering in GaAsSb/GaAs nanowires grown by MBE. DTU 1st International Workshop on Crystal-Phase Structures in Nanowires , Copenhagen 2019-04-04 - 2019-04-05
• Poster
  Mosberg, Aleksander Buseth; Myklebost, Steinar; Ren, Dingding; Weman, Helge; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (2019) Characterizing nanowire arrays by computer vision based on SEM images. EMAS 16th European microbeam analysis society meeting , Trondheim 2019-05-19 - 2019-05-23
• Vitenskapelig foredrag
  Weman, Helge. (2019) AlGaN nanowire UV LED using graphene as substrate and transparent bottom electrode. Beijing Graphene Insiitute Invited talk Beijing Graphene Institute , Beijing 2019-11-28 -
• Vitenskapelig foredrag
  Weman, Helge. (2019) AlGaN nanowire UV LED using graphene as substrate and transparent bottom electrode . Neel Institute Invited talk at Neel Institute , Grenoble 2019-10-17 - 2019-10-17
• Vitenskapelig foredrag
  Weman, Helge. (2019) AlGaN nanowire UV LED using graphene as substrate and transparent bottom electrode. China Solid State Lighting Alliance Invited talk 16th China International Forum on Solid State Lighting , Shenzhen 2019-11-25 - 2019-11-27
• Vitenskapelig foredrag
  Liudi Mulyo, Andreas; Rajpalke, Mohana; Vullum, Per Erik; Weman, Helge; Kishino, Katsumi; Fimland, Bjørn-Ove. (2019) The influence of AlN buffer layer on the growth of self-assembled GaN nanocolumns on graphene. Nanowire week , Pisa 2019-09-23 - 2019-09-27
• Faglig foredrag
  Weman, Helge. (2019) Using graphene as epitaxial substrate and transparent electrode for semiconductor devices . Phantoms Invited talk at Graphene 2019 , Rome 2019-06-25 - 2019-06-28
• Intervju
  Høiaas, Ida Marie; Weman, Helge; Fimland, Bjørn-Ove. (2019) Ny og ufarlig elektronisk komponent kan erstatte kvikksølv. Teknisk Ukebald Teknisk Ukebald [Fagblad] 2019-05-28
• Intervju
  Høiaas, Ida Marie; Weman, Helge; Fimland, Bjørn-Ove. (2019) New nanomaterial to replace mercury. Norwegian SciTech News Norwegian SciTech News [Internett] 2019-04-25
• Intervju
  Weman, Helge. (2019) Scientists create ultraviolet light on a graphene surface. Nanowerk Nanowerk [Internett] 2019-05-23
• Intervju
  Weman, Helge. (2019) Un nuevo nanomaterial reemplaza al mercurio para producir luz UVC. Europapress.es Europapress.es [Internett] 2019-04-26
• Populærvitenskapelig foredrag
  Weman, Helge. (2019) Nanowire UV LEDs using graphene as substrate and transparent electrode. Nanoteknologistudiet NTNU Grey Goo Symposium , Trondheim 2019-02-14 - 2019-02-14
• Intervju
  Weman, Helge. (2019) UV LEDs on graphene: Cheaper and ten times more efficient. eeNews eeNews [Internett] 2019-02-13
• Intervju
  Høiaas, Ida Marie; Weman, Helge; Fimland, Bjørn-Ove. (2019) Utviklet nanomateriale som kan erstatte kvikksølv. Gemini.no Gemini.no [Internett] 2019-05-27

2018

• Vitenskapelig foredrag
  Weman, Helge. (2018) III-V semiconductor nanowire/graphene hybrid structures and devices . NTNU NanoLab Invited talk at NTNU NanoLab Symposium 2018 , Trondheim 2018-11-28 - 2018-11-29
• Poster
  Nylund, Inger-Emma; Ren, Dingding; Weman, Helge; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (2018) Electron microscopy characterization of GaN Nanowires grown on graphene. IFY&IMA CSI2018 , Trondheim 2018-06-19 - 2018-06-21
• Poster
  Ahtapodov, Lyubomir; Munshi, A Mazid; Fimland, Bjørn-Ove; Van Helvoort, Antonius; Weman, Helge. (2018) Optical determination of the GaAs zinc blende/wurtzite band offsets. Nanowire Week 2018 , Hamilton 2018-06-11 - 2018-06-15
• Poster
  Nilsen, Julie Stene; Ånes, Håkon Wiik; Andersen, Ingrid Marie; Ren, Dingding; Weman, Helge; Fimland, Bjørn-Ove. (2018) Large Area Crystal Phase Mapping by Scanning Electron Diffraction and Machine Learning Data Analysis. CEN-DTU/Scandem Scandem 2018 , Copenhagen 2018-06-25 - 2018-06-28
• Vitenskapelig foredrag
  Weman, Helge. (2018) Growth and Fabrication of III-V Nanowire/Graphene Hybrid Structures and Devices. NTT Invited talk at NTT Res. Lab, Atsugi, Japan , Morinosato 2018-09-14 - 2018-09-14
• Vitenskapelig foredrag
  Høiaas, Ida Marie; Liudi Mulyo, Andreas; Vullum, Per Erik; Ahtapodov, Lyubomir; KIM, DONG CHUL; Fimland, Bjørn-Ove. (2018) Using graphene as substrate and transparent electrode in an GaN/AlGaN nanocolumn flip-chip UV LED. Nanowire Week , Hamilton 2018-06-11 - 2018-06-15
• Vitenskapelig foredrag
  Weman, Helge. (2018) Using graphene as an epitaxial substrate and transparent electrode for GaN/AlGaN UV LEDs. Invited talk at Solid State Devices and Materials-Japan , Tokyo 2018-09-11 - 2018-09-13
• Vitenskapelig foredrag
  Weman, Helge. (2018) III-V semiconductor nanowire/graphene hybrid structures and devices. TU Berlin Invited talk at Technical University of Berlin , Berlin 2018-01-22 - 2018-01-22
• Vitenskapelig foredrag
  Weman, Helge. (2018) Using graphene as epitaxial substrate and transparent electrode for semiconductor devices. Beijing Graphene Institute (BGI) Invited talk at Beijing Graphene Forum and BGI Inauguration , Beijing 2018-10-25 - 2019-08-26
• Poster
  Høiaas, Ida Marie; Liudi Mulyo, Andreas; Vullum, Per Erik; Ahtapodov, Lyubomir; KIM, DONG CHUL; Fimland, Bjørn-Ove. (2018) GaN/AlGaN nanocolumn UV LED using graphene as substrate and transparent electrode. Int. Workshop on Nitride Semiconductors , Kanazawa 2018-11-11 - 2018-11-16
• Faglig foredrag
  Weman, Helge. (2018) AlGaN nanowire UV LED using graphene as substrate and transparent electrode. Invited talk at Solid State Lighting-China 2018 , Shenzhen 2018-10-23 - 2018-10-25
• Poster
  Liudi Mulyo, Andreas; Rajpalke, Mohana Krishnappa; Kuroe, Haruhiko; Vullum, Per Erik; Weman, Helge; Fimland, Bjørn-Ove. (2018) Growth and characterization of GaN nanocolumns grown on graphene using a thin AlN buffer layer. International Workshop on Nitride Semiconductors (IWN2018) , Kanazawa 2018-11-11 - 2018-11-16
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove. (2018) Building Miniature Lasers with Nanowires. Science and technology research news Science and technology research news [Internett] 2018-08-24
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove. (2018) Building minature lasers with nanowires. Gemini.no Gemini.no [Internett] 2018-08-23
• Intervju
  Weman, Helge. (2018) Vil revolusjnere UV LED markedet. NTNU Discovery årsrapport 2017 NTNU Discovery årsrapport 2017 [Tidsskrift] 2018-01-01
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove. (2018) Building miniature lasers using nanowire. Nanowerk.com Nanowerk.com [Internett] 2018-08-29
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove. (2018) Lager miniatyrlasere i nanotråder. Gemini.no Gemini.no [Internett] 2018-06-29
• Poster
  Munshi, Abdul Mazid; KIM, DONG CHUL; Heimdal, Carl Philip J; Heilmann, Martin; Christiansen, Silke; Vullum, Per Erik. (2018) Positioned-controlled growth of AlGaN nanopyramid arrays on graphene by metal-organic vapor phase epitaxy. Int. Workshop on Nitride Semiconductors , Kanazawa 2018-11-11 - 2018-11-16
• Poster
  Mukherjee, Anjan; Ren, Dingding; Islam, M. A.; Mosberg, Aleksander Buseth; Li, Yang; Ahtapodov, Lyubomir. (2018) Monitoring Axial and Radial Junction GaAs Nanowire Solar Cells Through a New Approach: Towards Efficient Performance. NTNU NanoLab NTNU Nano Symposium , Trondheim 2018-11-28 - 2018-11-29
• Vitenskapelig foredrag
  Weman, Helge. (2018) Growth and fabrication of III-V nanowire/graphene hybrid structures and devices. Invited talk at Nanowire Week , Hamilton 2018-06-11 - 2018-06-15
• Vitenskapelig foredrag
  Mukherjee, Anjan; Shin, Dong Hoon; Munshi, Abdul Mazid; Dheeraj, D.L.; Nam, Jung Tae; Kim, Keun Sook. (2018) Bias-dependent scanning photocurrent microscopy on embedded single GaAs nanowire/graphene hybrid device. Nanowire Week , Hamilton 2018-06-11 - 2018-06-15
• Vitenskapelig foredrag
  Weman, Helge. (2018) Using graphene as epitaxial substrate and transparent electrode for AlGaN UV LEDs. Phantoms Foundation Invited talk at ImagineNano 2018 , Bilbao 2018-03-13 - 2018-03-15
• Vitenskapelig foredrag
  Ren, Dingding; Ahtapodov, Lyubomir; Nilsen, Julie Stene; Yang, J.; Huh, Junghwan; Kim, Dong-Chul. (2018) Single Nanowire Laser with GaAsSb-based Multiple-Superlatticed Gain Structure. MIT Compound Semiconductor week 2018 , Boston 2018-05-29 - 2018-06-01
• Vitenskapelig foredrag
  Ren, Dingding; Ahtapodov, Lyubomir; Nilsen, Julie Stene; Yang, J.; Gustafsson, A.; Huh, Junghwan. (2018) Single Nanowire Laser with GaAsSb-based Multiple-Superlatticed Gain Structure. UCSB 60th electronic materials conference at UCSB , Santa Barbara 2018-06-27 - 2018-06-29
• Vitenskapelig foredrag
  Mukherjee, Anjan; Shin, Dong Hoon; Munshi, Abdul Mazid; Dheeraj, Dasa; Nam, Jung Tae; Kim, Keun Sook. (2018) Bias-dependent Scanning Photocurrent Microscopy on a Single GaAs Nanowire Graphene Hybrid Device. NTNU Nano Symposium , Trondheim 2018-11-28 - 2018-11-29
• Intervju
  Weman, Helge. (2018) Tenk Stort- Tenk Nano. Podcast Podcast [Internett] 2018-12-06

2017

• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene structures and photonic devices. Invited talk at Int. workshop on Physics of Semiconductor Devices , New Delhi 2017-12-11 - 2017-12-15
• Poster
  Liudi Mulyo, Andreas; Høiaas, Ida Marie; Rajpalke, Mohana Krishnappa; Fimland, Bjørn-Ove; Weman, Helge; Kishino, Katsumi. (2017) Graphene as a substrate and bottom electrode for high density and vertically aligned GaN nanocolumns. Nanolab NTNU Nano@NTNU Symposium , Trondheim 2017-12-06 - 2017-12-07
• Vitenskapelig foredrag
  Weman, Helge. (2017) Epitaxial growth of heterostructured III-V semiconductor nanowires on graphene. Eindhoven TU Invited talk Erik Bakkers group, Eindhoven TU , Eindhoven 2017-05-02 - 2017-05-02
• Faglig foredrag
  Weman, Helge. (2017) AlGaN nanostructures on graphene: A new disruptive technology for UV LEDs. LED Taiwan LED Taiwan 2017 , Taipei 2017-04-12 - 2017-04-12
• Vitenskapelig foredrag
  Weman, Helge. (2017) Epitaxial growth of heterostructured III-V semiconductor nanowires on graphene. South China University Invited talk at South China University , Changsha 2017-04-19 - 2017-04-19
• Populærvitenskapelig foredrag
  Weman, Helge. (2017) Changing the UV LED industry and beyond. NTNU TTO TTO vårslæpp , Trondheim 2017-06-07 - 2017-06-07
• Faglig foredrag
  Weman, Helge. (2017) AlGaN nanowire flip-chip UV LEDs grown on graphene/glass. SSL China SSL China 2017 , Beijing 2017-11-01 - 2017-11-03
• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene hybrid structures and devices. Beijing Graphene Institute Invited talk in prof. Zhongfan Liu-s group , Beijing 2017-10-31 - 2017-10-31
• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene hybrid structures and devices. Uni. Michigan Invited talk in Prof. Zetian Mi's group Uni. Michigan , Ann Arbor 2017-10-16 - 2017-10-16
• Poster
  Høiaas, Ida Marie; Liudi Mulyo, Andreas; KIM, DONG CHUL; Fimland, Bjørn-Ove; Kishino, Katsumi; Weman, Helge. (2017) Graphene as growth substrate and transparent electrode for flip-chip GaN/AlGaN nanocolumn UV-LEDs. DTU, Danmark Carbonhagen 2017 , Copenhagen 2017-08-16 -
• Vitenskapelig foredrag
  Weman, Helge. (2017) Epitaxial growth of semiconductor nanostructures on graphene. DTU, Danmark Carbonhagen 2017 , Copenhagen 2017-08-16 - 2017-08-17
• Vitenskapelig foredrag
  Weman, Helge. (2017) Epitaxial growth of heterostructured III-V semiconductor nanowires on graphene. KIST Invited talk KIST, Korea , Jeonbuk 2017-04-10 - 2017-04-10
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Seo, Miri; Nam, Jungtae; Kim, Keun Sook. (2017) Single GaAs nanowire/graphene hybrid devices fabricated by a position controlled micro transfer and imprinting technique for embedded structures. MRS MRS Spring meeting 2017 , Phoenix 2017-04-17 - 2017-04-21
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Seo, Miri; Nam, Jungtae; Kim, Keun Sook. (2017) An Imprinting Technique to Fabricate Embedded Single GaAs Nanowire/Graphene Hybrid Devices . DTU, Danmark Carbonhagen 2017 , Copenhagen 2017-08-16 - 2017-08-17
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Seo, Miri; Kim, Keun Sook; Lee, Sang Wook. (2017) Embedded single GaAs nanowire/graphene hybrid devices fabricated by a position- controlled micro transfer and imprinting technique. Lund University Nanowire week , Lund 2017-05-29 - 2017-06-02
• Faglig foredrag
  Liudi Mulyo, Andreas; Høiaas, Ida Marie; KIM, DONG CHUL; Fimland, Bjørn-Ove; Weman, Helge; Kishino, Katsumi. (2017) AlGaN/GaN Nanocolumn Flip-Chip UV LEDs Grown on Graphene/Silica Glass. The 11th International Symposium on Semiconductor Light Emitting Devices , Banff 2017-10-08 - 2017-10-12
• Faglig foredrag
  Liudi Mulyo, Andreas; Fimland, Bjørn-Ove; Weman, Helge; Kishino, Katsumi. (2017) Epitaxial Growth of Vertical n-type GaN/AlGaN Nanocolumns on Graphene/Silica Glass. The 12th International Conferences on Nitride Semiconductors , Strasbourg 2017-07-24 - 2017-07-28
• Faglig foredrag
  Van Helvoort, Antonius; Garmannslund, Andreas; Bogen, J; Nilsen, Julie Stene; Fauske, vidar T.; Ren, Dingding. (2017) Improved compositional mapping of heterostructured nanowire (by STEM-EDX). Lund University Nanowire Week , Lund 2017-05-29 - 2017-06-02
• Poster
  Mosberg, Aleksander Buseth; Myklebost, S; Ren, Dingding; Weman, Helge; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (2017) Evaluating focused ion beam patterning for nanowire growth using computer vision. IoP/RMS EMAG/MMC , Manchester 2017-07-03 - 2017-07-06
• Faglig foredrag
  Fauske, vidar T.; Huh, Junghwan; Divitini, Giorgio; Munshi, A Mazid; Dheeraj, D.L.; Ducati, C. (2017) In-situ studying the heat‐induced replacement of GaAs by Au. LOT FRance/DENS Solutions In-situ TEM sample-management solution workshop , Grenoble 2017-03-16 - 2017-03-16
• Poster
  Mosberg, Aleksander Buseth; Myklebost, S; Ren, Dingding; Weman, Helge; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (2017) Exploring focused ion beam substrate patterning for nanowire growth. Lund University Nanowire Week , Lund 2017-05-29 - 2017-06-02
• Poster
  Ren, Dingding; Ahtapodov, Lyubomir; Nilsen, Julie Stene; Yang, J.; Gustafsson, A; Huh, Junghwan. (2017) High-Q factor, single-mode, room-temperature lasing from GaAsSb/GaAs nanowire superlattices. Lund University Nanowire Week , Lund 2017-05-29 - 2017-06-02
• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene hybrid structures and devices. NTNU Fredagkollokvie fysikk , Trondheim 2017-10-27 - 2017-10-27
• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene structures and photonic devices. Albanova, KTH Invited talk at KTH , Stockholm 2017-10-25 - 2017-10-25
• Vitenskapelig foredrag
  Høiaas, Ida Marie; Liudi Mulyo, Andreas; KIM, DONG CHUL; Fimland, Bjørn-Ove; Kishino, Katsumi; Weman, Helge. (2017) AlGaN/GaN nanowire flip-chip UV LED using graphene as substrate and transparent electrode. Nanolab NTNU og Nano Network Nano@NTNU , Trondheim 2017-12-06 - 2017-12-07
• Faglig foredrag
  Liudi Mulyo, Andreas; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge; Kishino, Katsumi. (2017) Epitaxy Feasibility of n-type GaN/AlGaN Nanocolumns on Silica Glass. PDI Berlin Compound Semiconductor Week 2017 , Berlin 2017-05-14 - 2017-05-18
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Munshi, Mazid; Dasa, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (2017) Fabrication of Single GaAs Nanowire/Graphene Hybrid Devices for Optoelectronic Applications. Nordic Nanolab User Meeting (NNUM) 2017 , Trondheim 2017-05-09 - 2017-05-10
• Vitenskapelig foredrag
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Seo, Miri; Nam, Jung Tae; Kim, Keun Soo. (2017) High-Quality Single GaAs Nanowire/Graphene Junctions Fabricated by using an Imprinting Technique for Embedded Nanowire Configurations. 8th Annual Workshop of the Norwegian PhD Network on Nanotechnology for Microsystems - 2017 , Bergen 2017-06-12 - 2017-06-14
• Vitenskapelig foredrag
  Ren, Dingding; Ahtapodov, Lyubomir; Nilsen, Julie Stene; Yang, J.; Gustafsson, Anders; Huh, Junghwan. (2017) Ternary GaAsSb Nanowire for Optoelectronic Applications. NTNU NanoLab Nano@NTNU symposium 2017 , Trondheim 2017-12-06 - 2017-12-07
• Intervju
  Weman, Helge. (2017) Norway pioneers new UV LEDs. Gemini Gemini [Internett] 2017-08-03
• Intervju
  Weman, Helge. (2017) Gründerselskapet CrayoNano AS vil nå et etablere et pilotanlegg for utvikling av en ny type UV-LED i Trondheim. Gemini Gemini [Internett] 2017-06-15
• Intervju
  Weman, Helge. (2017) Sluppen klar for industrieventyr. Adressa Adressa [Avis] 2017-06-06
• Intervju
  Weman, Helge. (2017) UV LED av nanotråder på grafén. Elektronikknet Elektronikknet [Fagblad] 2017-06-28
• Intervju
  Weman, Helge. (2017) Teknologiselskap henter 50 millioner og ny ledelse. Dagens Næringsliv Dagens Næringsliv [Avis] 2017-06-15
• Intervju
  Weman, Helge. (2017) En reaktor blir installert i Trondheim. Den gror halvleder nanotråder til UV LED som dreper bakterier og desinfiserer. Teknisk Ukeblad Teknisk Ukeblad [Tidsskrift] 2017-08-27

2016

• Faglig foredrag
  Ren, Dingding; Dheeraj, D.L.; Jin, C; Nilsen, Julie Stene; Huh, Junghwan; Reinertsen, Johannes F. (2016) Self-catalyzed GaAsSb nanowires grown on silicon and graphene by molecular beam epitaxy: high-yield with stabilized crystal phase. NanoNetwork 7th NanoNetwork workshop , Trondheim 2016-06-13 - 2016-06-15
• Faglig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, A; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge. (2016) Characterization of Pd/Ge/Au contacts on GaAs Nanowires. Scandem 67th Scandem Meeting , Trondheim 2016-06-07 - 2016-06-10
• Faglig foredrag
  Ren, Dingding; Huh, Junghwan; Dheeraj, D.L.; Weman, Helge; Fimland, Bjørn-Ove. (2016) Ga­diffusion Induced Morphological and Compositional Variations in Self­Catalyzed GaAsSb Nanowire Array. MRS 2016 Fall Meeting NM1: Semiconducting Nanowires, Nanoribbons and HeterostructuresSynthesis, Characterizations and Functional Devices , Boston 2016-11-27 - 2016-12-02
• Poster
  Høiaas, Ida Marie; KIM, DONG CHUL; Weman, Helge. (2016) Large-grained Si(111) crystalline thin film on graphene by aluminum-induced crystallization. Graphene 2016 , Genoa 2016-04-18 - 2016-04-22
• Faglig foredrag
  Weman, Helge. (2016) AlGaN Nanowire/Graphene Deep UV LEDs. 13th China International Forum on Solid State Lighting (SSLCHINA 2016) , Beijing 2016-11-15 - 2016-11-17
• Faglig foredrag
  Weman, Helge. (2016) Epitaxial growth of semiconductor nanostructures on graphene: A solution for UV LEDs . Graphene Canada 2016 , Montreal 2016-10-18 - 2016-10-20
• Vitenskapelig foredrag
  Liudi Mulyo, Andreas; Konno, Yuta; Fimland, Bjørn-Ove; Weman, Helge; Kishino, Katsumi. (2016) Growth of Self-Organized Vertical GaN Nanocolumns Utilizing AlN as Nucleation Sites on Single Layer Graphene/Silica Glass by Molecular Beam Epitaxy. International Workshop on Nitride Semiconductors (IWN 2016) , Orlando 2016-10-02 - 2016-10-07
• Poster
  Nilsen, Julie Stene; Mosberg, Aleksander Buseth; Garmannslund, Andreas; Reinertsen, Johannes F; Munshi, A Mazid; Dheeraj, D.L.. (2016) Self-Induced Compositional Variations in GaAs/AlGaAs Core-Shell Nanowires. EMS European Microscopy Congress 2016 , Lyon 2016-08-28 - 2016-09-02
• Vitenskapelig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, A Mazid; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge. (2016) Pd/Ge/Au contacts on GaAs Nanowires. NTNU NanoLab Nano@NTNU workshop , Trondheim 2016-11-17 - 2016-11-18
• Vitenskapelig foredrag
  Weman, Helge. (2016) Epitaxial growth of semicondcutor nanowires on graphene. Invited talk in Prof. Bhattacharya's group, TIFR-Mumbai , Mumbai 2016-08-03 - 2016-08-03
• Faglig foredrag
  Ren, Dingding; Dheeraj, D.L.; Nilsen, Julie Stene; Huh, Junghwan; Van Helvoort, Antonius; Weman, Helge. (2016) Effects of Sb on Crystal Phase, Morphology and Optical Emission of Self-catalyzed GaAsSb Nanowires on Si(111) and Graphitic Substrates. 19th International Conference on Molecular Beam Epitaxy , Montpellier 2016-09-04 - 2016-09-09
• Faglig foredrag
  Weman, Helge. (2016) Ultraviolet LEDs: A killer application for graphene?. 2nd Annual China International Graphene Summit , Shanghai 2016-01-20 - 2016-01-21
• Vitenskapelig foredrag
  Weman, Helge. (2016) Epitaxial growth of heterostructured III-V semiconductor nanowires on graphene. Invited talk in Prof. Zetian Mi's and Thomas Szkopek's group, McGill University, Montreal , Montreal 2016-10-21 - 2016-10-21
• Faglig foredrag
  Weman, Helge. (2016) Epitaxial growth of semiconductor nanostructures on graphene: Generic model and a potential first device application . NanoSpain 2016 , Logrono 2016-03-15 - 2016-03-18
• Poster
  KIM, DONG CHUL; Jungtae, Nam; Hoyeol, Yun; Seungjin, Nam; Jun Yeong, Hwang; Sang Wook, Lee. (2016) Chemical vapor deposition of graphene and its physisorption strain on Pt substrates. Carbonhagen 2016 , Copenhagen 2016-08-17 - 2016-08-18
• Intervju
  Weman, Helge. (2016) Grafén – fremtidens superstoff. NITO Refleks NITO Refleks [Internett] 2016-01-18
• Faglig foredrag
  Liudi Mulyo, Andreas; Konno, Yuta; Weman, Helge; Kishino, Katsumi. (2016) Self-Organized GaN Nanocolumns Grown on Silica Glass by RF-Molecular Beam Epitaxy. Japanese Physical Society Japanese Physical Society Spring Meeting , Tokyo 2016-03-19 - 2016-03-22
• Poster
  KIM, DONG CHUL; Jungtae, Nam; Hoyeol, Yun; Seungjin, Nam; Jun Yeong, Hwang; Sang Wook, Lee. (2016) Investigation of graphene growth on platinium by chemical vapor deposition. Graphene2016 , Genoa 2016-04-18 - 2016-04-22
• Vitenskapelig foredrag
  Weman, Helge. (2016) III-V semiconductor nanowires grown on Si and graphene for optoelctronic applications. Invited talk in Prof. Kawakami's group, Kyoto University, Japan , Kyoto 2016-04-20 - 2016-04-20
• Faglig foredrag
  Liudi Mulyo, Andreas; Konno, Yuta; Fimland, Bjørn-Ove; Weman, Helge; Kishino, Katsumi. (2016) Self-Organized Vertical GaN Nanocolumns Grown on Silica Glass by RF-Molecular Beam Epitaxy . 19th International Conference on Molecular Beam Epitaxy , Montpellier 2016-09-04 - 2016-09-09
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Munshi, Mazid; Dasa, Dheeraj; Fimland, Bjørn-Ove. (2016) Comparison Study of Bottom- & Top- Graphene/Single GaAs Nanowire Contacts for Optoelectronic Applications . The Nano NTNU Symposium 2016 , Trondheim 2016-11-17 - 2016-11-18
• Faglig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, A; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge. (2016) Transmission electron microscopy study of Pd/Ge/Au contacts to GaAs nanowires. NanoNetwork 7th NanoNetwork workshop , Trondheim 2016-06-13 - 2016-06-15
• Faglig foredrag
  Van Helvoort, Antonius; Fauske, Vidar Tonaas; Huh, Junghwan; Divitini, G; Dheeraj, D.L.; Munshi, A. (2016) The kinetics and dynamics of Au-GaAs solid state replacements, studied by in situ TEM. DENS Dens preScandem Workshop , Trondheim 2016-06-07 - 2016-06-07
• Poster
  Høiaas, Ida Marie; KIM, DONG CHUL; Weman, Helge. (2016) Aluminum-induced crystallization of Si on graphene for optoelectronic devices. København Universitet og DTU Carbonhagen 2016 , København 2016-08-17 - 2016-08-18

2015

• Intervju
  Weman, Helge. (2015) 단일 나노선 고효율 응용소자’ 개발 High-efficiency single nanowire device developed. ConsumerWide ConsumerWide [Internett] 2015-05-22
• Intervju
  Fimland, Bjørn-Ove; Weman, Helge. (2015) I verdenstoppen på nanoteknologi. Forskningsrådet FORNY Forskningsrådet FORNY [Internett] 2015-03-10
• Vitenskapelig foredrag
  Ren, Dingding; Dasa Lakshmi Narayana, Dheeraj; Huh, Junghwan; Reinertsen, Johannes F; Munshi, Abdul Mazid; Kim, Dong-Chul. (2015) High-yield Self-catalyzed GaAsSb/GaAs Heterostructured Nanowire Array on Si(111) by Molecular Beam Epitaxy. Nanowire Growth Workshop 2015 , Barcelona 2015-10-26 - 2015-10-30
• Programdeltagelse
  Weman, Helge. (2015) Grafén - framtidens vidundermateriale?. NRK Kunnskapskanalen NRK Kunnskapskanalen [TV] 2015-04-18
• Faglig foredrag
  Weman, Helge. (2015) High-efficiency AlGaN nanowire/graphene deep UV LEDs. Semi, Taiwan LED Taiwan 2015 TechXPOT , Taipei 2015-03-25 - 2015-03-27
• Intervju
  Weman, Helge. (2015) Nanordsun; Semiconductor nanowire-based solar cells. Solving the Climate Crisis- A Nordic Contribution Solving the Climate Crisis- A Nordic Contribution [Tidsskrift] 2015-09-01
• Vitenskapelig foredrag
  Weman, Helge. (2015) III-V semiconductor nanowires on graphene for photonic applications. Chinese Academy of Science, Semiconductor Institute Invited talk in Prof. Zhiqiang Liu's group, State Key Lab on Solid State Lighting , Beijing 2015-11-08 - 2015-11-08
• Vitenskapelig foredrag
  Weman, Helge. (2015) III-V semiconductor nanowiress grown on Si and graphene for photonic applications. Invited talk in Prof. Kishino's group, Sophia University, Tokyo , Tokyo 2015-02-16 - 2015-02-16
• Vitenskapelig foredrag
  Weman, Helge. (2015) Epitaxial growth of semiconductor nanowires on graphene: Generic model and potential device applications . GeneExpression Systems Graphene Science Symposium , Boston 2015-09-21 - 2015-09-22
• Vitenskapelig foredrag
  Weman, Helge. (2015) Heterostructured III-V nanowires grown on Si and graphene for photonic applications. Invited talk in Prof. Samuelson's group, Lund University, Sweden , Lund 2015-04-20 - 2015-04-20
• Populærvitenskapelig foredrag
  Weman, Helge. (2015) Nanoteknologi. NTVA Teknologisprang for utvikling av havrommet , Trondheim 2015-09-09 - 2015-09-09
• Vitenskapelig foredrag
  Weman, Helge. (2015) Epitaxial growth of semiconductor nanowires on graphene . 1st Int. Conf. on Graphene Technology , Aveiro 2015-07-20 - 2015-07-22
• Faglig foredrag
  Weman, Helge. (2015) Selective-area growth of GaN/AlGaN nanostructures on graphene for high-efficiency deep UV LEDs. 12th China international forum on solid state lighting , Shenzhen 2015-11-02 - 2015-11-04
• Poster
  Huh, Junghwan; Yun, Hoyeol; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Lee, Sang Wook; Kim, Dong-Chul. (2015) Photocurrent Mapping of Single GaAsSb Nanowire Diodes. Nanowire Growth Workshop 2015 , Barcelona 2015-10-26 - 2015-10-30
• Populærvitenskapelig foredrag
  Weman, Helge. (2015) Lysdioder. NTNU Invetert forelesning for 4e klasse Energi og Miljø , Trondheim 2015-09-28 - 2015-09-28
• Poster
  Munshi, Abdul Mazid; Ren, Dingding; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; Aas, Lars Martin Sandvik; Van Helvoort, Antonius. (2015) On the growth of self-catalyzed GaAs nanowires on Si substrates: Opportunities and limitations. 31st North American Conference on Molecular Beam Epitaxy , Mayan Riviera 2015-10-04 - 2015-10-07
• Vitenskapelig foredrag
  Weman, Helge. (2015) III-V semiconductor nanowires grown by MBE on silicon and graphene for photonic applications. Max Planck Inst. Invited talk in Prof. Silke Christiansen's group, Max Planck Inst., Erlangen , Erlangen 2015-01-16 - 2015-01-16
• Intervju
  Weman, Helge. (2015) Grafén-Stoffenes Usain Bolt. NITO Refleks medlemsavis Høst 2015 NITO Refleks medlemsavis Høst 2015 [Tidsskrift] 2015-09-01
• Vitenskapelig foredrag
  Heilmann, Martin; Munshi, Abdul Mazid; Tessarek, Christian; Sarau, George; Bashouti, Mohammad; Göbelt, Manuela. (2015) Metal-organic vapor phase epitaxy of GaN nanorods on graphene. 6th Int. symposium on growth of III-nitrides , Hamamatsu 2015-11-08 - 2015-11-13
• Poster
  Ren, Dingding; Høiaas, Ida Marie; Reinertsen, Johannes F; Dasa Lakshmi Narayana, Dheeraj; Munshi, Abdul Mazid; Huh, Junghwan. (2015) Growth optimization for self-catalyzed GaAs nanowires on metal induced crystallized amorphous substrate. 31st North American Conference on Molecular Beam Epitaxy , Mayan Riviera 2015-10-04 - 2015-10-07
• Intervju
  Weman, Helge. (2015) Materials Innovations Help LEDs Turn On. Photonics Spectra June 2015 Photonics Spectra June 2015 [Tidsskrift] 2015-06-01
• Intervju
  Weman, Helge. (2015) Forskere vil bli kvitt kvikksølvlamper. Gemini Gemini [Tidsskrift] 2015-07-02
• Intervju
  Weman, Helge. (2015) Norske forskere vil utkonkurrere kvikksølv i vannrensing. Teknisk Ukeblad Teknisk Ukeblad [Tidsskrift] 2015-07-02
• Intervju
  Weman, Helge. (2015) Ett steg nærmere grafénprodukter. Elektronikknett no.1 2015 Elektronikknett no.1 2015 [Fagblad] 2015-01-01
• Intervju
  Weman, Helge. (2015) Nobelprisen i fysikk 2014. Fra fysikkens verden no.1 2015 Fra fysikkens verden no.1 2015 [Avis] 2015-01-01
• Faglig foredrag
  Weman, Helge. (2015) Deep Ultraviolet LEDs: A killer Application for Graphene?. IDTechEx Graphene and 2D Materials , Berlin 2015-04-28 - 2015-04-29
• Intervju
  Fimland, Bjørn-Ove; Weman, Helge. (2015) Denne lager superstoff som kan forandre verden. Universitetsavisa Universitetsavisa [Avis] 2015-03-09
• Poster
  Nilsen, Julie Stene; Reinertsen, Johannes F; Mosberg, Aleksander Buseth; Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj. (2015) Radial composition variations in the shells of GaAs/AlGaAs core-shell nanowires. NTNU NanoLab Nano@NTNU , Trondheim 2015-11-11 - 2015-11-11
• Faglig foredrag
  Høiaas, Ida Marie; KIM, DONG CHUL; Weman, Helge. (2015) Silicon-graphene heterostructure for optoelectronic devices. Nano Network 7th Nanonetwork workshop , Trondheim 2015-06-13 - 2016-06-15
• Vitenskapelig foredrag
  Ren, Dingding; Dheeraj, D.L.; Huh, Junghwan; Reinertsen, Johannes F; Mazid, A. M.; Kim, Dong-Chul. (2015) High-yield self-catalyzed GaAsSb/GaAs heterostructured nanowire array on Si(111) by molecular beam epitaxy. NTNU NanoLab Nano@NTNU , Trondheim 2015-11-11 - 2015-11-11
• Faglig foredrag
  Weman, Helge. (2015) Nanowire/Graphene UV LEDs . China Innovation Alliance of the Graphene Industry China Graphene Innovation Award , Wuxi 2015-09-05 - 2015-09-05
• Intervju
  Weman, Helge. (2015) -Når vi lykkes, vil vi tjene store penger. Dagens Näringsliv Dagens Näringsliv [Avis] 2015-11-30
• Poster
  Reinertsen, Johannes F; Nilsen, Julie Stene; Mosberg, Aleksander Buseth; Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj. (2015) Self-Induced Formation of Quantum Well Tubes in Self-Catalyzed GaAs/AlGaAs Core-Shell Nanowires. 582. WE-Heraeus-Seminar on III-V Nanowire Photonics , Bad Honnef 2015-03-22 - 2015-03-25
• Poster
  Høiaas, Ida Marie Eriksdatter; Ren, Dingding; KIM, DONG CHUL; Reinertsen, Johannes F; Fimland, Bjørn-Ove; Weman, Helge. (2015) GaAs Nanowire Growth on [111]-oriented Silicon with sub-grain Thickness. MyFab and NorFab user meeting , Lund 2015-04-21 - 2015-04-22
• Poster
  Nilsen, Julie Stene; Reinertsen, Johannes F; Mosberg, Aleksander Buseth; Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj. (2015) Self-Induced Formation of Quantum Structures in the Shell of GaAs/AlGaAs Core-Shell Nanowires. NTNU NanoLab / MyFab Myfab/NorFab user meeting 2015 , Lund 2015-04-21 - 2015-04-22
• Vitenskapelig foredrag
  Fauske, Vidar Tonaas; Erlbeck, Maximilian; Huh, Junghwan; KIM, DONG CHUL; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj. (2015) In-situ electronic probing of semiconducting nanowires in an electron microscope. IoP/EMAG-group 19th Microscopy of Semiconducting Materials , Cambridge 2015-03-29 - 2015-04-02
• Poster
  Høiaas, Ida Marie Eriksdatter; Ren, Dingding; Reinertsen, Johannes F; KIM, DONG CHUL; Fimland, Bjørn-Ove; Weman, Helge. (2015) GaAs Nanowire Growth on [111]-oriented Silicon with sub-grain Thickness. Nano Network Nano Network Workshop , Oslo 2015-06-15 - 2015-06-17
• Vitenskapelig foredrag
  Nilsen, Julie Stene; Reinertsen, Johannes F; Mosberg, Aleksander Buseth; Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj. (2015) Compositional variations in the shells of GaAs/AlGaAs core-shell nanowires. RMS & IoP MMC/EMAG , Manchester 2015-06-29 - 2015-07-02

2014

• Vitenskapelig foredrag
  Weman, Helge. (2014) III-V semiconductor nanowires@NTNU. NTNU Nanolab Nanolab 10th aniversium , Trondheim 2014-11-10 - 2014-11-11
• Populærvitenskapelig foredrag
  Weman, Helge. (2014) Nobelprisen i fysikk 2014. GLØSHAUGENS AKADEMIKERE Årets Nobelpris i fysikk , Trondheim 2014-12-18 - 2014-12-18
• Populærvitenskapelig foredrag
  Weman, Helge. (2014) Halvleder-nanotråder på grafén for neste generasjon IKT. NTNU Invetert forelesning for 1e klasse ELSYS , Trondheim 2014-11-22 - 2014-11-22
• Vitenskapelig foredrag
  Weman, Helge. (2014) Towards low-cost, high-efficiency semiconductor nanowire/graphene solar cells. IIT Delhi & Oxford Instruments Bring the Nanoworld Together , New Delhi 2014-11-27 - 2014-11-28
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; Reinertsen, Johannes F; Ahtapodov, Lyubomir; Lee, KD. (2014) Position controlled GaAs nanowires on 2-inch Si wafers using nanoimprint lithography. MRS MRS Spring Meeting , San Francisco 2014-04-22 - 2014-04-22
• Vitenskapelig foredrag
  Fauske, Vidar Tonaas; Huh, Junghwan; Erlbeck, Maximilian; KIM, DONG CHUL; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj. (2014) In-situ electronic probing of nanostructures in a FIB. NTNU Nanolab Nanolab 10th aniversium , Trondheim 2014-11-10 - 2014-11-11
• Intervju
  Weman, Helge. (2014) Nanokunnskap gir supersolceller. Gemini.no og forskning.no Gemini.no og forskning.no [Internett] 2014-04-11
• Vitenskapelig foredrag
  Lim, Cheng Guan; Weman, Helge. (2014) Enhancing the Light-Matter Interactions in Radial p-n Junction Core-Shell Nanowires for Highly Efficient Nanowire Solar Cells. MRS 2014Spring Meeting , San Francisco 2014-04-21 - 2014-04-25
• Vitenskapelig foredrag
  Weman, Helge. (2014) Towards low cost high efficiency semiconductor nanowire graphene solar cells. Invited talk: 1 st International Symposium on Energy Challenges and Mechanics , Aberdeen 2014-07-08 - 2014-07-10
• Vitenskapelig foredrag
  Weman, Helge. (2014) How a Norwegian university project became the nanotech start-up CrayoNano. Invited talk :International Forum on the Nanotechnology Commercialization 2014" , Seoul 2014-06-11 - 2014-06-12
• Poster
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; Ren, Dingding; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2014) Limitations of self-catalytic growth in controlling the diameter of GaAs nanowires on Si substrates. MBE2014 , Flagstaff 2014-09-07 - 2014-09-12
• Intervju
  Weman, Helge. (2014) Grønt lys for en ny verden. Tekna Magasinet No.1 2014 Tekna Magasinet No.1 2014 [Tidsskrift] 2014-02-18
• Intervju
  Weman, Helge. (2014) New physical phenomenon on nanowires seen for the first time. phys.org phys.org [Internett] 2014-04-14
• Intervju
  Weman, Helge. (2014) Strain and light emission in gallium arsenide nanowires. Semiconductor-today.com Semiconductor-today.com [Tidsskrift] 2014-04-28
• Intervju
  Weman, Helge. (2014) Better solar cells, better LED light and vast optical possibilities. Science Daily Science Daily [Internett] 2014-04-11
• Intervju
  Weman, Helge. (2014) Better solar cells, better LED light and vast optical possibilities. phys.org phys.org [Internett] 2014-04-14
• Intervju
  Weman, Helge. (2014) New physical phenomenon on nanowires seen for the first time. nanowerk.com nanowerk.com [Internett] 2014-04-11
• Intervju
  Weman, Helge. (2014) Bedre solceller og LED-lys. Aftenposten Aftenposten [Avis] 2014-04-11
• Intervju
  Weman, Helge. (2014) Stress Activates Light-Emitting Nanowires. Photonics Photonics [Tidsskrift] 2014-04-23
• Intervju
  Weman, Helge. (2014) Graphene and a modified structure of nanowires will improve solar cells and LED lighting. alternative-energies.net alternative-energies.net [Internett] 2014-04-18
• Vitenskapelig foredrag
  Weman, Helge. (2014) Towards flexible high-efficiency semiconductor nanowire/graphene solar cells. Invited talk: Nanofair 2014 , Dresden 2014-07-01 - 2014-07-03
• Vitenskapelig foredrag
  Weman, Helge. (2014) Heterostructured III-V nanowires grown on Si and graphene for photonic applications. Invited Seminar in Prof. Xiong Qihua's group at Nanyang Technical Univeristy, Singapore , Singapore 2014-03-12 - 2014-03-12
• Poster
  Kauko, Hanne; Grieb, Tim; Munshi, Abdul Mazid; Müller, Knut; Weman, Helge; Rosenauer, A.. (2014) The outward diffusion of Sb during growth of antimonide III-V nanowires. 8th Nanowire Growth Workshop , Eindhoven 2014-08-25 - 2014-08-27
• Vitenskapelig foredrag
  Huh, Junghwan; Yun, H.; KIM, DONG CHUL; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kauko, Hanne. (2014) GaAsSb nanowire diodes based on self-induced compositional variation. Nanowire2014 , Eindhoven 2014-08-25 - 2014-08-29
• Intervju
  Weman, Helge. (2014) Fremtidens supermateriale. Aftenposten Aftenposten [Avis] 2014-03-25
• Intervju
  Weman, Helge. (2014) Smått og godt. Dagens Næringsliv Dagens Næringsliv [Avis] 2014-04-10
• Intervju
  Weman, Helge. (2014) Dette er fremtidens supermateriale. Adressa Adressa [Avis] 2014-03-26
• Poster
  Lim, Cheng Guan; Weman, Helge. (2014) Optimal Solar Cell Efficiency of Radial p-n Junction GaAs/AlGaAs Core-Shell Nanowire Arrays. EU PVSEC 2014 , Amsterdam 2014-09-22 - 2014-09-26
• Vitenskapelig foredrag
  Signorello, G.; Lörtscher, E; Khomyakov, P.A.; Karg, S.; Dasa Lakshmi Narayana, Dheeraj; Gotsmann, B.. (2014) Inducing a Direct-to-Pseudodirect Bandgap Transition in Wurtzite GaAs Nanowires with Uniaxial Stress. MRS 2014Spring Meeting , San Francisco 2014-04-21 - 2014-04-25
• Poster
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; Ren, Dingding; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2014) Limitations of self-catalytic growth in controlling the diameter of GaAs nanowires on Si substrates. Nanowire2014 , Eindhoven 2014-08-25 - 2014-08-29
• Vitenskapelig foredrag
  Signorello, G.; Lörtscher, E; Khomyakov, P.A.; Karg, S.; Dasa Lakshmi Narayana, Dheeraj; Gotsmann, B.. (2014) Inducing a direct-to-pseudodirect bandgap transition in wutzite GaAs nanowires with uniaxial stress. Nanowire2014 , Eindhoven 2014-08-25 - 2014-08-29
• Intervju
  Weman, Helge. (2014) Nano-kongene. Finansavisen Finansavisen [Avis] 2014-08-23
• Intervju
  Weman, Helge. (2014) Tuning a single nanowire improves solar cells and LEDs. nanowerk.com nanowerk.com [Internett] 2014-04-11
• Intervju
  Weman, Helge. (2014) Nanowire light-emitting diodes. nanotechmag.com nanotechmag.com [Internett] 2014-04-10
• Intervju
  Weman, Helge. (2014) IBM Combines Light Emission and Detection in Single Nanowire. IEEE Spectrum IEEE Spectrum [Tidsskrift] 2014-04-14
• Intervju
  Weman, Helge. (2014) Tweaking nanowires boosts solar cell and LED outputs. optics.org optics.org [Internett] 2014-04-24
• Vitenskapelig foredrag
  Svendsen, Guro Kristin; Skaar, Johannes; Weman, Helge; Dupertuis, M.-A.. (2014) Symmetries and optical transitions of hexagonal quantum dots in GaAs/AlGaAs nanowires. ICPS 2014 , Austin, Texas, USA 2014-08-10 - 2014-08-15

2013

• Intervju
  Weman, Helge. (2013) Graphene and Semiconductor Technology Together: Smaller, Cheaper, Better. Science Daily Science Daily [Internett] 2013-06-11
• Intervju
  Weman, Helge. (2013) Måtte holde teknologien hemmelig. Teknisk Ukeblad Teknisk Ukeblad [Internett] 2013-02-04
• Intervju
  Weman, Helge. (2013) Mirakelmaterialet grafén vil føre til revolusjoner innen teknologi. Hardware.no Hardware.no [Internett] 2013-09-03
• Vitenskapelig foredrag
  Weman, Helge. (2013) Heterostructured III-V nanowires grown on Si and graphene for photonic applications. Invited talk at University of Copenhagen , Copenhagen 2013-11-01 - 2013-11-01
• Populærvitenskapelig foredrag
  Weman, Helge. (2013) Grafén-og nanoblyanter. Arnfinn Stendahl Rokne, NTNU Kunnskapsbyen , Trondheim 2013-11-27 - 2013-11-27
• Vitenskapelig foredrag
  Huh, Junghwan; KIM, DONG CHUL; Yun, H.; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kauko, Hanne. (2013) Electrical Characteristics of Individual GaAsSb Nanowires Grown by Molecular Beam Epitaxy. NTNU Nanolab 8th Nanolab usermeeting , Trondheim 2013-11-12 - 2013-11-12
• Populærvitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; KIM, DONG CHUL; Huh, Junghwan; Reinertsen, Johannes F; Ahtapodov, Lyubomir. (2013) Position Controlled GaAs Nanowires on Si using Nanoimprint Lithography. NTNU Nanolab 8th Nanolab usermeeting , Trondheim 2013-11-12 - 2013-11-12
• Vitenskapelig foredrag
  Weman, Helge. (2013) III-V nanowire/graphene hybrid structures-A platform for future devices. NTNU Nanoscale communication technologies , Trondheim 2013-10-17 - 2013-10-17
• Faglig foredrag
  Weman, Helge. (2013) II-V semiconductor nanowire project at NTNU. NTNU Nanolab and Rice University Norway-Texas meeting at NTNU , Trondheim 2013-10-15 - 2013-10-15
• Faglig foredrag
  Weman, Helge. (2013) NaNordSun-Semiconductor Nanowire Based Solar Cells. Nordic Innovation Nordic Innovation meeting on Top-level Research Initiative , Copenhagen 2013-11-22 - 2013-11-22
• Intervju
  Weman, Helge. (2013) Graphene and semiconductor technology together: smaller, cheaper, better. Forskningsrådet Forskningsrådet [Internett] 2013-05-30
• Intervju
  Weman, Helge. (2013) En planlagt tilfeldighet. Forskingsbladet Forskingsbladet [Avis] 2013-06-07
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove; Kim, Dong-Chul. (2013) På vei mot noe stort. Forskningsrådet Forskningsrådet [Internett] 2013-05-15
• Programdeltagelse
  Weman, Helge; Fimland, Bjørn-Ove; Kim, Dong-Chul. (2013) Grafén-Forbløffende superstoff. NRK Schrödingers katt NRK Schrödingers katt [TV] 2013-03-14
• Intervju
  Weman, Helge. (2013) Grafén – supermateriale som vil revolusjonere fremtidens datamaskin. IKT nytt IKT nytt [Internett] 2013-07-13
• Intervju
  Weman, Helge. (2013) Grafen forstærker lysets kraft. Videnskap DK Videnskap DK [Internett] 2013-04-01
• Vitenskapelig foredrag
  Weman, Helge. (2013) Epitaxial growth of vertical III-V semiconductor nanowires on graphene. The Collaborative Conference on Crystal Growth , Cancun 2013-06-10 - 2013-06-13
• Vitenskapelig foredrag
  Weman, Helge. (2013) Heterostructured III-V nanowires grown on Si and graphene substrates for photonic applications. Invited talk in Prof. Yong-Hee Lee's group at Sungkyunkwan University , Suwon 2013-03-19 - 2013-03-19
• Poster
  Lim, Cheng Guan; Weman, Helge. (2013) Design guidelines for radial p-n junction GaAs/AlGaAs core-shell nanowire solar cells. Nanowires-2013 , Rehovot 2013-11-12 - 2013-11-15
• Vitenskapelig foredrag
  Weman, Helge. (2013) Heterostructured III-V nanowires grown by molecular beam epitaxy on Si and graphene substrates. Invited talk in Prof. Yapin Dang's group at Jia Tong University , Shanghai 2013-03-13 - 2013-03-13
• Vitenskapelig foredrag
  Weman, Helge. (2013) Heterostructured III-V nanowires grown on Si and graphene for photonic applications. Invited talk in Xiamin Ren's group at Beijing University of Posts and Telecommunications , Beijing 2013-03-22 - 2013-03-22
• Vitenskapelig foredrag
  Weman, Helge. (2013) Heterostructured III-V nanowires grown by molecular beam epitaxy on Si and graphene substrates. Invited talk in Prof. Wei Lu's group at Shanghai Institute of Technical Physics, , Shanghai 2013-03-12 - 2013-03-12
• Vitenskapelig foredrag
  Weman, Helge. (2013) Heterostructured III-V nanowires grown on Si and graphene for solar cell applications. Invited talk in Prof. Hingwei Zhu's group at Tsinghua University , Beijing 2013-03-22 - 2013-03-22
• Vitenskapelig foredrag
  Huh, Junghwan; Kim, Dong-Chul; Yun, H.; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kauko, Hanne. (2013) Effects on compositional variation on the electrical property of GaAsSb nanowires. MRS MRS 2013 Fall Meeting , Boston 2013-12-02 - 2013-12-06
• Poster
  Ahtapodov, Lyubomir; Kauko, Hanne; Munshi, Abdul Mazid; Fimland, Bjørn-Ove; Van Helvoort, Antonius; Weman, Helge. (2013) Optical properties of self-catalyzed GaAs Nanowires with axial GaAsSb inserts. Nanowires-2013 , Rehovot 2013-11-12 - 2013-11-15
• Poster
  Nam, J.; Kim, Dong-Chul; Andersen, P.C.; Park, S.J.; Dae, D.J.; Munshi, Abdul Mazid. (2013) Synthesis and characterization of graphene on Pt using CVD. Korean Physical Society Spring Meeting , Daejon 2013-04-24 - 2013-04-26
• Poster
  Ghalamestani, Sepideh Gorji; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge; Dick, Kimberly A. (2013) Self-catalyzed MBE grown GaAs/GaAsSb core-shell nanowires in ZB and WZ crystal structures. 7th Nanowire Growth Workshop , Lausanne 2013-06-10 - 2013-06-12
• Vitenskapelig foredrag
  Lim, Cheng Guan; Weman, Helge. (2013) Numerical Analysis and Device Optimization of Radial p-n Junction GaAs/AlGaAs Core-Shell Nanowire Solar Cells. 13th Int. Conf. on Numerical Simulations of Optoelectronic Devices , Vancouver 2013-08-19 - 2013-08-22
• Vitenskapelig foredrag
  Weman, Helge. (2013) Semiconductor nanowires grown on graphene. 4th annual NanoNetwork Workshop , Bergen 2013-06-17 - 2013-06-19
• Vitenskapelig foredrag
  Weman, Helge. (2013) Epitaxial growth of semiconductor nanowires on graphene:Generic model and potential device applications. Physical Sciences Symposia – 2013 on ‘Crystal & Graphene Science , Boston 2013-09-04 - 2013-09-05
• Poster
  Huh, Junghwan; Kim, Dong-Chul; Yun, H.; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kim, G.T.. (2013) Electrical properties of III-V semiconductor nanowires for solar cell applications. 4th Annual Nanonetwork Workshop , Bergen 2013-06-17 - 2013-06-19
• Vitenskapelig foredrag
  Weman, Helge. (2013) Heterostructured III-V nanowires grown on Si and graphene for photonic applications. Invited talk in Prof. Jianhua Zhao's group at Inst. of Semiconductors Chinese Academy of Sciences , Beijing 2013-03-25 - 2013-03-25
• Poster
  Kauko, Hanne; Munshi, Abdul Mazid; Lim, Cheng Guan; KIM, DONG CHUL; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove. (2013) GaAs/AlGaAs core-shell nanowires for novel solar cell applications. NRF Nanokonferansen 2013 , Oslo 2013-03-18 - 2013-03-18
• Poster
  Kauko, Hanne; Munshi, Abdul Mazid; Lim, Cheng Guan; KIM, DONG CHUL; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove. (2013) GaAs/AlGaAs core-shell nanowires for novel solar cell applications. FME sol Norwegian Solar Cell Conferance 2013 , Oppdal 2013-03-13 - 2013-03-15
• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Todorovic, Jelena; Reinertsen, Johannes F; Dasa Lakshmi Narayana, Dheeraj; Munshi, Abdul Mazid; Van Helvoort, Antonius. (2013) Optical Characterization of Single Semiconductor Nanowires. Myfab og Norfab MYFAB&NORFAB Meetting , Uppsala 2013-04-17 - 2013-04-18
• Poster
  Dasa Lakshmi Narayana, Dheeraj; Munshi, Abdul Mazid; Fauske, Vidar Tonaas; KIM, DONG CHUL; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2013) Epitaxial growth of vertical III-V semiconductor nanowires on graphene. Graphene2013 , Bilbao 2013-04-23 - 2013-04-26
• Vitenskapelig foredrag
  Fauske, Vidar Tonaas; KIM, DONG CHUL; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (2013) In-situ electrical and structural characterization of individual GaAs nanowire. IoP-EMAG EMAG2013 , York 2013-09-02 - 2013-09-06
• Poster
  Dasa Lakshmi Narayana, Dheeraj; Munshi, Abdul Mazid; Fauske, Vidar Tonaas; KIM, DONG CHUL; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2013) Epitaxial growth and characterization of vertical III-V semiconductor nanowires on graphene. 7th Nanowire Growth Workshop , Lausanne 2013-06-10 - 2013-06-12
• Poster
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2013) Limitations of self-catalytic growth in controlling diameter of GaAs nanowires on Si substrates. 7th Nanowire Growth Workshop , Lausanne 2013-06-10 - 2013-06-12
• Poster
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; KIM, DONG CHUL; Todorovic, Jelena; Huh, Junghwan. (2013) GaAs nanowires grown on silicon and graphene for solar cell application. Nanonetwork 4th annual NanoNetwork Workshop , Bergen 2013-06-17 - 2013-06-19
• Poster
  Kauko, Hanne; Munshi, Abdul Mazid; Lim, Cheng Guan; KIM, DONG CHUL; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove. (2013) Novel solar cells based on GaAs/AlGaAs core-shell nanowires. Nanonetwork 4th annual Nanonetwork workshop , Bergen 2013-06-17 - 2013-06-19
• Vitenskapelig foredrag
  Fauske, Vidar Tonaas; KIM, DONG CHUL; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (2013) Mechanical and electrical characterization of nanowire-substrate interfaces. Nanonetwork 4th Annual Nanonetwork Workshop , Bergen 2013-06-17 - 2013-06-19
• Poster
  Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; KIM, DONG CHUL; Fimland, Bjørn-Ove; Weman, Helge. (2013) Site-specific, cross-sectional TEM samples of as-grown nanowires by FIB. NorFab/MyFab NorfFab/MyFab user meeting , Uppsala 2013-04-17 - 2013-04-18

2012

• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Olk, Phillip; Todorovic, Jelena; Mjåland, Terje Sund; Slåttnes, Patrick Rene Tollefsen; Dasa Lakshmi Narayana, Dheeraj. (2012) Combined micro-photoluminescence and electron microscopy investigation of single GaAs nanowires. ICPS2012 , Zurich 2012-07-29 - 2012-08-03
• Poster
  Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kim, Dong Chul; Fimland, Bjørn-Ove; Weman, Helge. (2012) Characterization of the Interface between GaAs Nanowires and a 111-Si Substrate. MRS MRS 2012 Spring Meeting , San Francisco 2012-04-09 - 2012-04-13
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kim, Dong Chul; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2012) Zinc blende and wurtzite GaAs nanowires grown by self-catalyzed molecular beam epitaxy. MRS MRS 2012 Spring Meeting , San Francisco 2012-04-09 - 2012-04-13
• Vitenskapelig foredrag
  Kim, Dong Chul; Ahtapodov, Lyubomir; Dasa Lakshmi Narayana, Dheeraj; Todorovic, Jelena; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2012) Photocurrent study of Single Wurtzite AlGaAs-GaAs Core/shell nanowires. MRS MRS 2012 Spring Meeting , San Francisco 2012-04-09 - 2012-04-13
• Vitenskapelig foredrag
  Kim, Dong Chul; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Lim, Cheng Guan; Fauske, Vidar Tonaas; Van Helvoort, Antonius. (2012) Semiconductor Nanowire Based Solar Cells-A Nordic Top-level Research Initiative. Technoporten , Trondheim 2012-04-16 - 2012-04-18
• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Todorovic, Jelena; Olk, Phillip; Kim, Dong Chul; mjaaland, T.S.; Eriksson, M. (2012) Wurtzite versus Zincblende GaAs – A Thorough Comparison. MRS 2012 Spring Meeting , San Francisco 2012-04-09 - 2012-04-13
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Todorovic, Jelena; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2012) GaAs nanowires grown on Si substrates: Crystal phase perfection, heterostructures and position control. Nano-network 3rd Nano-network Workshop , Trondheim 2012-06-11 - 2012-06-11
• Vitenskapelig foredrag
  Todorovic, Jelena; Anthonysamy, Fervin Moses; Ahtapodov, Lyubomir; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (2012) Correlation of optical and structural properties of single semiconductor heterostructured nanowires. Scandem Scandem 2012 , Bergen 2012-06-13 - 2012-06-15
• Vitenskapelig foredrag
  Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kim, Dong Chul; Fimland, Bjørn-Ove; Weman, Helge. (2012) Transmission Electron Microscopy Study of Defects at the Interface between GaAs Nanowires and a Si-111 Substrate. Nano-network 3rd Nano-network Workshop , Trondheim 2012-06-11 - 2012-06-13
• Poster
  Ahtapodov, Lyubomir; Todorovic, Jelena; Olk, Phillip; mjaaland, T.S.; Slaattnes, P.R.T.; Dasa Lakshmi Narayana, Dheeraj. (2012) Optical Characterization of Single GaAs/AlGaAs Nanowires with Combined Photoluminescence Spectroscopy and Transmission Electron Microscopy on the Same Nanowire. Nano-network 3rd Nano-network Workshop , Trondheim 2012-06-11 - 2012-06-13
• Poster
  Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; DONG CHUL, KIM; Fimland, Bjørn-Ove; Weman, Helge. (2012) Site-specific, cross-sectional TEM samples of as-grown nanowires by FIB. EMC 15th EMC , Manchester 2012-09-16 - 2012-09-21
• Vitenskapelig foredrag
  Weman, Helge. (2012) III-V nanowires for high-efficiency solar cells. Transatlantic Science Week. Invited talk at "Nano-enabling technologies" , Houston 2012-11-14 - 2012-11-14
• Intervju
  Weman, Helge. (2012) Researchers claim semiconductors grown on graphene. EE times EE times [Internett] 2012-09-10
• Intervju
  Weman, Helge. (2012) 挪威科研人员成功研制半导体新材料. China.gov China.gov [Internett] 2012-10-31
• Intervju
  Weman, Helge. (2012) Scientists create ultra-thin, cheap, flexible, transparent graphene semiconductors. Gizmag Gizmag [Internett] 2012-09-28
• Intervju
  Weman, Helge. (2012) Graphene Replaces Traditional Silicon Substrates in Future Devices. IEEE Spectrum IEEE Spectrum [Internett] 2012-09-28
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove. (2012) De kan revolusjonere verdens datateknologi. Bergens Tidene Bergens Tidene [Internett] 2012-12-02
• Vitenskapelig foredrag
  Weman, Helge. (2012) Heterostructured III-V semiconductor nanowires grown by Au and self-catalyzed MBE. Invited talk in Prof. Fukui's group at Hokkaido University, Sapporo , Sapporo 2012-10-01 - 2012-10-01
• Populærvitenskapelig foredrag
  Weman, Helge. (2012) Semiconductor nanowires on graphene for next generation ICT. IME NTNU ITovation day 2012 2012-11-27 - 2012-11-27
• Vitenskapelig foredrag
  Weman, Helge. (2012) Heterostructured III-V semiconductor nanowires grown by Au and self-catalyzed MBE. Invited talk in Dr.Notomi's group at NTT Basic Res. Lab, Atsugi 2012-10-03 - 2012-10-03
• Vitenskapelig foredrag
  Weman, Helge. (2012) Heterostructured III-V semiconductor nanowires grown by Au and self-catalyzed MBE. Invited talk in Prof. Yi's group at Seoul National University 2012-10-05 - 2012-10-05
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove. (2012) NTNU-oppdagelse kan revolusjonere elektronikkbransjen. Adressa Adressa [Avis] 2012-09-11
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove. (2012) De kan revolusjonere verdens datateknologi. Aftenposten Aftenposten [Avis] 2012-12-02
• Populærvitenskapelig foredrag
  Weman, Helge. (2012) Commercialisation of Nanotechnology. NordForsk Annual Top level Research program meeting 2012 , Helsinki 2012-10-29 - 2012-10-30
• Vitenskapelig foredrag
  Weman, Helge. (2012) Heterostructured III-V nanowires grown by molecular beam epitaxy for photonic applications. Invited talk in Prof. Ruoff's group at University of Texas, Austin 2012-11-12 - 2012-11-12
• Intervju
  Weman, Helge. (2012) NTNU-gjennombrudd for nanotråder på grafen. Digi.no Digi.no [Internett] 2012-09-11
• Intervju
  Weman, Helge. (2012) Supertynt stoff kan strupe solindustrien. Dagens Næringsliv Dagens Næringsliv [Avis] 2012-09-11
• Poster
  Kim, Dong-Chul; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (2012) Investigation of wurtzite GaAs nanowires by polarization dependent photocurrent spectroscopy. ICPS 2012 , Zurich 2012-07-29 - 2012-08-03
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove. (2012) Nanohalvledere på grafen revolutionerer solcellers effektivitet. Ingenjøren Ingenjøren [Avis] 2012-10-20
• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Snustad, Ingrid; Gulla, Stian; Munshi, Abdul Mazid; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (2012) Correlated micro photoluminescence and transmission electron microscopy on single self‐assisted GaAs/AlGaAs core‐shell nanowires. NTNU Nanolab 7th Nanolab usermeeting , Trondheim 2012-12-12 - 2012-12-12
• Poster
  Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; DONG CHUL, KIM; Fimland, Bjørn-Ove; Weman, Helge. (2012) FIB prepared site-specific cross-sectional TEM specimen of nanowire-substrate interfaces. NTNU Nanolab 7th Nanolab usermeeting , Trondheim 2012-12-12 - 2012-12-12
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; DONG CHUL, KIM; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2012) Epitaxial growth of semiconductor III-V nanowires on graphene: A template for future opto-electronic device applications. NTNU Nanolab 7th Nanolab usermeeting , Trondheim 2012-12-12 - 2012-12-12
• Vitenskapelig foredrag
  Weman, Helge. (2012) Heterostructured III-V nanowires grown by MBE. Invited Seminar in Prof. Xianfen Duan's group at UCLA , UCLA 2012-04-16 - 2012-04-16
• Vitenskapelig foredrag
  Dasa Lakshmi Narayana, Dheeraj; DONG CHUL, KIM; Munshi, Abdul Mazid; Lim, Cheng Guan; Fauske, Vidar Tonaas; Van Helvoort, Antonius. (2012) III-V semiconductor nanowire based solar cells. Turid Worren Reenaas Mini‐workshop on materials for solar cells and other optoelectronic applications , NTNU, Trondheim 2012-09-11 -
• Vitenskapelig foredrag
  Weman, Helge. (2012) Heterostructured III-V semiconductor nanowires for solar cell applications. Department of Physics, Konkuk University Invited Seminar in Prof. SangWook Lee's group at Kunkuk Uni, Seoul , Seoul 2012-05-15 - 2012-05-15
• Vitenskapelig foredrag
  Weman, Helge. (2012) III-V Nanowire Solar Cells. Solar United Invited talk at 2012 meeting of The Norwegian Research Centre for Solar Cell Technology , Trondheim 2012-05-23 - 2012-05-23
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; DONG CHUL, KIM; Todorovic, Jelena; Fauske, Vidar Tonaas; Van Helvoort, Antonius. (2012) Self-catalyzed GaAs nanowires grown by molecular beam epitaxy. Turid Worren Reenaas Mini‐workshop on materials for solar cells and other optoelectronic applications , NTNU, Trondheim 2012-09-11 -
• Populærvitenskapelig foredrag
  Weman, Helge. (2012) Halvleder nanotråder. NTNU/Catharina De Lange Davies Innovasjon Norge (medisin) besöker Trondheim , Trondheim 2012-06-28 - 2012-06-28
• Populærvitenskapelig foredrag
  Weman, Helge. (2012) Nanoteknologi- Vad er det?. Luftkrigsskolen, Trondheim Luftkrigsskolen, Trondheim , Trondheim 2012-01-17 - 2012-01-17
• Poster
  Dasa Lakshmi Narayana, Dheeraj; Munshi, Abdul Mazid; Christoffersen, Ole Morten; DONG CHUL, KIM; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2012) Growth and characterization of Be-doped GaAs nanowires grown by Au- and Ga-assisted molecular beam epitaxy. MBE2012 , Nara 2012-09-23 - 2012-09-28
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Todorovic, Jelena; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2012) Crystal phase tuning in self-catalyzed GaAs nanowires induced by Ga-droplet contact angle. MBE2012 , Nara 2012-09-23 - 2012-09-28
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; DONG CHUL, KIM; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2012) A generic model and experimental demonstration of epitaxial growth of GaAs nanowires on graphene layers. MBE2012 , Nara 2012-09-23 - 2012-09-28
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; DONG CHUL, KIM; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2012) Epitaxial Growth of High Quality Vertical GaAs Nanowires on Graphene by Molecular Beam Epitaxy. MRS MRS Autumn meeting , Boston 2012-11-25 - 2012-11-25

2011

• Vitenskapelig foredrag
  Weman, Helge. (2011) Invited seminar on "Heterostructured III-V nanowires grown byAu-assisted molecular beam epitaxy". WE Heraeus Stiftung, Tysklland Heraeus seminar on III-V Nanowires , Bad Honnef 2011-02-21 - 2011-02-23
• Poster
  Ahtapodov, Lyubomir; Kim, D.C.; Boe, A.B.; Choi, J.W.; Ji, H.; Kim, G. T.. (2011) Photocurrent spectroscopy of single wurtzite GaAs nanowires. WE Heraeus Stiftung, Tysklland Heraeus seminar on III-V Nanowires , Bad Honnef 2011-02-21 - 2011-02-23
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Todorovic, Jelena; Dasa Lakshmi Narayana, Dheeraj; Olk, Phillip; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2011) Consecutive optical and structural characterization of a single heterostructured III-V semiconductor nanowire. 2nd Nano-network Workshop , Oslo 2011-06-15 - 2011-06-17
• Vitenskapelig foredrag
  Todorovic, Jelena; Anthonysamy, Fervin Moses; Dasa Lakshmi Narayana, Dheeraj; Olk, Phillip; Fimland, Bjørn-Ove; Weman, Helge. (2011) Correlated micro-photoluminescence and electron microscopy study of a heterostructured semiconductor nanowire. IoP Microscopy of Semiconducting Materials 2011 (MSM XVII) , Cambridge 2011-04-04 - 2011-04-04
• Poster
  Munshi, Abdul Mazid; Kim, D.C.; Dasa Lakshmi Narayana, Dheeraj; Todorovic, Jelena; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2011) Positioned self-catalyzed GaAs nanowire arrays on Si substrates grown by molecular beam epitaxy. Nano-network Workshop , Oslo 2011-06-15 - 2011-06-15
• Poster
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Todorovic, Jelena; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2011) Insights into Growth Mechanisms of Self-catalyzed GaAs Nanowires Grown by Molecular Beam Epitaxy. MRS MRS Spring Meeting , San Francisco 2011-04-25 - 2011-04-29
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Todorovic, Jelena; karlberg, Thomas; Van Helvoort, Antonius; Dasa Lakshmi Narayana, Dheeraj; Olk, Phillip. (2011) Consecutive Photoluminescence and Transmission Electron Microscopy Studies of Single GaAs/AlGaAs Core-shell Nanowires with a GaAsSb Insert. MRS MRS Spring meeting 2011 , San Francisco 2011-04-25 - 2011-04-29
• Vitenskapelig foredrag
  Fauske, Vidar Tonaas; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; DONG CHUL, KIM; Fimland, Bjørn-Ove; Weman, Helge. (2011) Cross-sectional Electron Microscopy characterization of the interface between GaAs Nanowires and a Si Substrate. NTNU Nanolab 6th Nanolab usermeeting , Trondheim 2011-11-16 - 2011-11-16
• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Olk, Phillip; Todorovic, Jelena; Mjåland, Terje Sund; Dasa Lakshmi Narayana, Dheeraj; Van Helvoort, Antonius. (2011) Optical characterization of single semiconductor nanowires. NTNU NanoLab 6th NanoLab user meeting , Trondheim 2011-11-16 - 2011-11-16
• Populærvitenskapelig foredrag
  Weman, Helge. (2011) Guest seminar at Sungkyunkwan (Samsung) University: Nanotechnology at NTNU. Sungkyunkwan (Samsung) University Nanostudent excursion to Korea 2011 , Suwon 2011-04-27 - 2011-04-27
• Vitenskapelig foredrag
  Weman, Helge. (2011) Invited seminar: III-V nanowires for high-efficiency solar cells. Norway-China Workshop on Nanotechnology for renewable energy materials , Trondheim 2011-08-31 - 2011-09-01
• Populærvitenskapelig foredrag
  Weman, Helge. (2011) Guest seminar at POSTECH: Nanotechnology at NTNU. Dept. of Physics, POSTECH Nanostudent excursion to Korea 2011 , Pohang 2011-04-21 - 2011-04-21
• Vitenskapelig foredrag
  Weman, Helge. (2011) Semiconductor nanowire based solar cells-A Nordic top-level research initiative. 24th Nordic semiconductor meeting , Fuglsøcenter 2011-06-19 - 2011-06-22
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; DONG CHUL, KIM; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2011) Periodic arrays of self-catalyzed heterostructured GaAs nanowires on Si substrates grown by molecular beam epitaxy. CNRS GDR Semiconductor Nanowires and Nanotubes , Porquerolles 2011-10-17 - 2011-10-21
• Vitenskapelig foredrag
  Weman, Helge. (2011) Invited seminar: Heterostructured III-V nanowires grown by MBE. IBM Zurich Research Lab. IBM seminar series , Rueschlikon 2011-01-19 - 2011-01-19
• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Olk, Phillip; Todorovic, Jelena; Ericsson, M.; Dasa Lakshmi Narayana, Dheeraj; Van Helvoort, Antonius. (2011) Optical properties of Wurtzite GaAs nanowires. CNRS GDR Semiconductor Nanowires and Nanotubes , Porquerolles 2011-10-17 - 2011-10-21
• Vitenskapelig foredrag
  Weman, Helge. (2011) Invited seminar: Heterostrucured III-V nanowires grown by Au- and self-assisted molecular beam epitaxy. PDI PDI Topical Workshop on MBE-grown arsenide nanowires , Berlin 2011-09-08 - 2011-09-09
• Vitenskapelig foredrag
  Olk, Phillip; Härtling, Thomas; DONG CHUL, KIM; Weman, Helge. (2011) All-optical contacting of single nanowires by confocal photodeposition of metal. Materials Research Society Materials Res. Soc. 2011 Fall Meeting, Symposium BB: Functional Nanowires and Nanotubes , Boston 2011-11-27 - 2011-12-02
• Vitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; DONG CHUL, KIM; Todorovic, Jelena; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2011) Crystal phase and position control of self-catalyzed GaAs nanowires grown on a Si substrate. NTNU NanoLab 6th NanoLab user meeting , Trondheim 2011-11-16 - 2011-11-16
• Vitenskapelig foredrag
  DONG CHUL, KIM; Christoffersen, Ole Morten; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Ahtapodov, Lyubomir; Fimland, Bjørn-Ove. (2011) Nanofabrication of GaAs nanowire optoelectronic devices in NTNU NanoLab. NTNU NanoLab 6th NanoLab user meeting , Trondheim 2011-11-16 - 2011-11-16
• Populærvitenskapelig foredrag
  Weman, Helge. (2011) Guest seminar at Korea University: Nanotechnology at NTNU. Korea University Nanostudent excursion to Korea 2011 , Seoul 2011-04-26 - 2011-04-26
• Populærvitenskapelig foredrag
  Weman, Helge. (2011) Guest seminar at KAIST: Nanotechnology at NTNU. KAIST NTNU-KAIST nanotechnology workshop , Taejon 2011-04-22 - 2011-04-22
• Vitenskapelig foredrag
  Weigand, Christian Carl; Skåre, Daniel; Tveit, Johannes; Ladam, Cecile; Holmestad, Randi; Grepstad, Jostein. (2011) Growth of ZnO nanostructures on c- and a-plane sapphire by Au-assisted pulsed laser deposition. CNRS GDR Semiconductor Nanowires and Nanotubes , Porquerolles 2011-10-17 - 2011-10-21
• Poster
  DONG CHUL, KIM; Ahtapodov, Lyubomir; Boe, A.B.; Choi, J.W.; Kim, G. T.; Ji, H. (2011) Photocurrent spectroscopy of single wurtzite GaAs nanowires. Heraeus seminar on III-V Nanowires , Bad Honnef 2011-02-21 - 2011-02-23
• Populærvitenskapelig foredrag
  Weman, Helge. (2011) Guest seminar at Seoul National University: Nanotechnology at NTNU. Seoul National University Nanostudent excursion to Korea 2011 , Seoul 2011-04-25 - 2011-04-25
• Poster
  Olk, Phillip; Härtling, Thomas; DONG CHUL, KIM; Weman, Helge. (2011) Contacting single nanowires by confocal photodeposition of metal. GDR Semiconductor Nanowires and Nanotubes GDR Nanofils 2011 , Porquerolles 2011-10-17 - 2011-10-21
• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Olk, Phillip; Todorovic, Jelena; Mjåland, Terje Sund; Eriksson, M.; Bergman, P. (2011) Combined studies of single Au-assisted GaAs/AlGaAs core/shell nanowires with PL spectroscopy and TEM. PDI Topical Workshop on MBE-grown Arsenide Nanowires , Berlin 2011-09-08 - 2011-09-09
• Vitenskapelig foredrag
  Dasa Lakshmi Narayana, Dheeraj; Munshi, Abdul Mazid; DONG CHUL, KIM; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2011) Controlling crystal phases in GaAs nanowires grown by Au- and Ga-assisted MBE. PDI Topical Workshop on MBE-grown Arsenide Nanowires , Berlin 2011-09-08 - 2011-09-08
• Vitenskapelig foredrag
  Kauko, Hanne; Grieb, Tim; Rosenauer, A.; Bjørge, Ruben; Munshi, Abdul Mazid; Weman, Helge. (2011) Composition analysis of heterostructured GaAs nanowires with quantitative HAADF-STEM. NTNU Nanolab 6th Nanolab usermeeting , Trondheim 2011-11-16 - 2011-11-16

2010

• Poster
  Weigand, Christian Carl; Grepstad, Jostein; Bergren, Matt; Weman, Helge; Furtak, Tom; Collins, Reuben. (2010) ZnO nanostructures grown by pulsed laser deposition. Norwegian PhD Network on Nanotechnology for Microsystems 1st Annual Workshop of the Norwegian PhD Network on Nanotechnology for Microsystems , Tønsberg 2010-05-31 - 2010-06-02
• Poster
  DONG CHUL, KIM; Ahtapodov, Lyubomir; Bø, A. B; Choi, J. W.; Ji, H.; Kim, G. T.. (2010) Photocurrent Spectroscopy of Single Wurtzite GaAs Nanowires. ICPS 2010 , Seoul 2010-07-25 - 2010-07-30
• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Anthonysamy, Fervin Moses; Olk, Phillip; Kim, D.C.; Weman, Helge. (2010) The Nanophotonics Lab at NTNU: A Cool Place for Small Things with a Bright Future. NTNU NanoLab 5th NanoLab user meeting , Trondheim 2010-09-10 - 2010-09-10
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Ahtapodov, Lyubomir; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2010) Engineering photoluminescence polarization in a single semiconductor nanowire. NTNU NanoLab 5th NanoLab user meeting , Trondheim 2010-09-10 - 2010-09-10
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Munshi, Abdul Mazid; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2010) Tuning of the crystal phases in GaAs nanowires grown by Au-assisted molecular beam epitaxy. NTNU NanoLab 5th NanoLab user meeting , Trondheim 2010-09-10 -
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Munshi, Abdul Mazid; Fimland, Bjørn-Ove; Weman, Helge; Van Helvoort, Antonius. (2010) Controlling crystal phases in GaAs nanowires grown by Au-assisted molecular beam epitaxy. 5th nanowire growth workshop , Rome 2010-11-03 - 2010-11-05
• Vitenskapelig foredrag
  Furtak, T.E.; Baker, D.J.; Weigand, Christian Carl; Adamson, Jamie M.; Allen, C.G.; Yocom, A.E.. (2010) Surface Modification of Zinc Oxide Anodes in Organic Solar Cells. Materials Research Society MRS Spring meeeting , San Francisco 2010-04-05 - 2010-04-09
• Vitenskapelig foredrag
  Weigand, Christian Carl; Ladam, C.; Bergren, Matt; Tveit, Johannes; Vullum, Per Erik; Dahl, Øystein. (2010) ZnO nanostructures grown by pulsed laser deposition. NTNU NanoLab 5th NTNU Nanolab Users Mtg. , Trondheim 2010-09-10 -
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2010) Growth of heterostructured III-V semiconductor nanowires by molecular beam epitaxy. Nano-network workshop 2010 , Tønsberg 2010-05-31 - 2010-06-02
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Munshi, Abdul Mazid; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2010) Controlling crystal phases in GaAs nanowires grown by Au-assisted molecular beam epitaxy. 16th International Conference on Molecular Beam Epitaxy , Berlin 2010-08-22 - 2010-08-27
• Vitenskapelig foredrag
  Weigand, Christian Carl; Baker, D.J.; Adamson, Jamie M.; Allen, C.G.; Bergren, M.R.; Steirer, K.X.. (2010) ZnO nanorod hybrid Organic/Inorganic Solar Cells and the effect of surface modifications. NTNU Renewable Energy Research Conference , Trondheim 2010-06-07 - 2010-06-10
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires for photonic applications. Prof. Gyu Tae Kim, Korea University Invited seminar Korea University, Seoul-Korea , Seoul 2010-07-22 - 2010-07-22
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires for photonic applications. Dr. Seo Sunae, Samsung Electronics Invited seminar Samsung Electronics,Korea , Suwon 2010-07-23 - 2010-07-23
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires for photonic applications. Prof. Yung Woo Park, Seoul National University Invited seminar Seoul National University, Korea , Seoul 2010-07-21 - 2010-07-21
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Zhou, Hailong; Anthonysamy, Fervin Moses; Hoang, Thang Ba; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2010) Tuning of the crystal phase in III-V nanowires grown by Au-assisted molecular beam epitaxy. MRS MRS Spring meeting , San Fransisco 2010-04-05 - 2010-04-05
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Ahtapodov, Lyubomir; Hoang, Thang Ba; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2010) Micro-photoluminescence spectroscopy and imaging of single axial and radial heterostructured III-V nanowires. Norwegian electro-Optics meeting , Ålesund 2010-04-07 - 2010-04-09
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires with mixed crystal phases. UCLA Invited seminar University of California Los Angeles , Los Angeles 2010-01-29 - 2010-01-29
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires with mixed crystal phases: New possibilities for bandstructure engineering. UCSD Invited seminar University of California San Diego , San Diego 2010-02-01 - 2010-02-01
• Vitenskapelig foredrag
  Svendsen, Guro Kristin; Weman, Helge; Skaar, Johannes. (2010) Modelling of reflection properties of nanowire lasers. Norwegian Electro-Optics Meeting 2010 , Ålesund 2010-04-07 - 2010-04-09
• Vitenskapelig foredrag
  Weman, Helge. (2010) Structural and optical properties of single III-V nanowires with different crystal phases. University of Oslo and IMEC, Belgium Invited seminar at NorPRINS workshop, Oslo , Oslo 2010-03-04 - 2010-03-05
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Zhou, Hailong; Anthonysamy, Fervin Moses; Hoang, Thang Ba; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2010) Growth of heterostructured III-V nanowires by molecular beam epitaxy for photonic applications. SPIE Photonics West , San Francisco 2010-01-23 - 2010-01-28
• Poster
  Ahtapodov, Lyubomir; Anthonysamy, Fervin Moses; Kim, D.C.; Olk, Phillip; Hoang, Thang Ba; Weman, Helge. (2010) The Nanophotonics Lab at NTNU: A Cool place for Small things with a Bright future. NTNU Norwegian Electro-Optics meeting , Ålesund 2010-04-07 - 2010-04-09
• Poster
  Kim, D.C.; Ahtapodov, Lyubomir; Boe, A.B.; Choi, J.W.; Ji, H.; Kim, G.T.. (2010) Photocurrent Spectroscopy of Single Wurtzite GaAs Nanowires. Korea Physical Society 30th International Conf. on the Physics of Semiconductors , Seoul 2010-07-25 - 2010-07-30
• Poster
  Dasa, Lakshmi Narayana Dheeraj; Munshi, Abdul Mazid; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2010) Control of wurtzite and zinc blende crystal phases in single GaAs nanowires grown by Au-assisted molecular beam epitaxy. 5th Nanowire growth workshop , Rome 2010-11-04 - 2010-11-04
• Poster
  Weigand, Christian Carl; Grepstad, Jostein; Weman, Helge; Ladam, C.; Vullum, Per Erik; Dahl, Øystein. (2010) ZnO nanosheets grown by pulsed laser deposition. 5th Nanowire Growth Workshop , Rome 2010-11-03 - 2010-11-05
• Poster
  Ladam, C.; Weman, Helge; Vetaas Thomassen, M.; Weigand, Christian Carl; Røyset, Arne. (2010) Photoluminescence characterization of ZnO nanorods. NTNU Norwegian Electro-Optics meeting , Ålesund 2010-04-07 - 2010-04-09
• Poster
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Ahtapodov, Lyubomir; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2010) Photoluminescence polarization anisotropy in a single heterostructured III-V nanowire with mixed crystal phases. 30th International Conference on the Physics of Semiconductors (ICPS 2010) , Seoul 2010-07-25 - 2010-07-30

2009

• Intervju
  Weman, Helge. (2009) Satser mye på lite. Under Dusken, nr 8, 2009 Under Dusken, nr 8, 2009 [Avis] 2009-05-05
• Intervju
  Weman, Helge. (2009) Åpning av NTNU NanoLab. NRK Trøndelag NRK Trøndelag [Radio] 2009-05-12
• Vitenskapelig foredrag
  Røyset, Arne; Fagerberg, Ragnar; Weman, Helge. (2009) Cool, Small and Bright: cryogenic micro-photoluminescence for photovoltaic materials. FFI Renewable Energy R&D-seminar, OPV2009: PV-materials , Oppdal 2009-03-19 - 2009-03-21
• Vitenskapelig foredrag
  Weman, Helge. (2009) Semiconductor nanowires for solar cell applications. NTNU 4th KIFEE Symposium on Environment, Energy, Materials and Education , Trondheim 2009-09-06 - 2009-09-09
• Vitenskapelig foredrag
  Hoang, Thang Ba; Anthonysamy, Fervin Moses; Zhou, Hailong; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2009) Crystal phase dependent photoluminescence polarization in single semiconductor nanowires. Georgia Tech., Atlanta 3rd International conf. on One-dimensional Nanomaterials , Atlanta 2009-12-07 - 2009-12-09
• Vitenskapelig foredrag
  Weigand, Christian Carl; Bergren, Matt; Ladam, Cecile; Vullum, Per Erik; Walmsley, John C; Fagerberg, Ragnar. (2009) Characterization of ZnO Nanostructures Grown by Pulsed Laser Deposition. Materials Research Society MRS Spring Meeting 2009 , San Francisco 2009-04-13 - 2009-04-17
• Vitenskapelig foredrag
  Hoang, Thang Ba; Anthonysamy, Fervin Moses; Zhou, Hailong; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2009) Polarized micro-photoluminescence imaging of single GaAs/AlGaAs core-shell nanowires with GaAsSb inserts. Materials Research Society Materials Res. Soc. 2009 Fall Meeting, Symposium O: Excitons and Plasmon Resonances in Nanostructures II , Boston 2009-11-29 - 2009-12-04
• Vitenskapelig foredrag
  Ladam, Cecile; Weigand, Christian Carl; Skåre, Daniel; Vardøy, Astrid-Sofie Borge; Dahl, Øystein; Bergren, Matt. (2009) Nanostructured ZnO layers grown by pulsed laser deposition for hybrid inorganic/organic solar cells. NFR NANOMAT conference 2009 , Lillehammer 2009-06-15 - 2009-06-17
• Vitenskapelig foredrag
  Van Helvoort, Antonius; Dasa, Lakshmi Narayana; Grønsberg, Sondre; Patriarche, G.; Zhou, Hailong; Hoang, Thang Ba. (2009) Semiconductor nanowire heterostructures characterization by dark field TEM. NTNU Nanolab 4th NTNU Nanolab User Meeting , Trondheim 2009-05-13 -
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Dasa, Lakshmi Narayana; Zhou, Hailong; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2009) Optical properties of axial and radial heterostructured III-V semiconductor nanowires. NTNU Nanolab 4th NTNU Nanolab User Meeting , Trondheim 2009-05-13 -
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Dasa, Lakshmi Narayana; Zhou, Hailong; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2009) Micro-photoluminescence study of single GaAsSb/GaAs radial and axial heterostructured core-shell nanowires. MRS E-MRS 2009 , Strasbourg 2009-06-08 - 2009-06-12
• Vitenskapelig foredrag
  Hoang, Thang Ba; Anthonysamy, Fervin Moses; Zhou, Hailong; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2009) Wurtzite GaAs and zinc blende GaAsSb nanowires: New possibilities for heterostructure engineering. NFR NANOMAT conference 2009 , Lillehamer 2009-06-16 - 2009-06-17
• Vitenskapelig foredrag
  Weman, Helge. (2009) Heterostructured III-V nanowires for photonic applications. Forsvarets Forskningsinstitutt Invited talk at FFI Material worskhop , Kongsvinger 2009-09-08 - 2009-09-09
• Vitenskapelig foredrag
  Weman, Helge. (2009) Heterostructured III-V nanowires for photonic applications. Kavli Institute of Nanoscience, Delft Technical University Invited seminar at Kavli Institute of Nanoscience, Delft TU , Deflt 2009-06-19 - 2009-06-19
• Vitenskapelig foredrag
  Weman, Helge. (2009) Heterostructured III-V nanowires with mixed crystal phases: New possibilities for band-structure engineering. IBM Zurich Research Lab. Invited seminar at IBM Zurich Research Lab. , Rueschlikon 2009-05-26 - 2009-05-26
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Zhou, Hailong; Anthonysamy, Fervin Moses; Hoang, Thang Ba; Rogstad, Espen. (2009) Tailoring of semiconductor heterostructure nanowires for photonic applications by molecular beam epitaxy. NTNU Nanolab 4th NTNU Nanolab User Meeting , Trondheim 2009-05-13 -
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Hoang, Thang Ba; Anthonysamy, Fervin Moses; Zhou, Hailong; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2009) Heterostructured III-V Nanowires with Mixed Crystal Phases: New Possibilities for Heterostructure Engineering. Nordic Semiconductor Meeting , Reykjavik 2009-06-14 - 2009-06-17
• Vitenskapelig foredrag
  Weman, Helge. (2009) Heterostructured wurtzite/zinc-blende GaAs/GaAsSb core-shell nanowires: New possibilities for band-structure engineering in nanowires. Hokkaido University Invited talk at 2009 RCIQE International Seminar on Advanced Semiconductor Materials and Devices, Sapporo, Japan , Sapporo 2009-03-02 - 2009-03-03
• Vitenskapelig foredrag
  Zhou, Hailong; Hoang, Thang Ba; Dasa, Lakshmi Narayana; Anthonysamy, Fervin Moses; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2009) Self-organized wurtzite AlGaAs core-shell nanowires with GaAs inserts grown by molecular beam epitaxy. CNRS (GDR 2974), CEA (INAC) GdR Nanofils et Nanotubes Semiconducteurs - Workshop 2009 , Autrans 2009-06-30 - 2009-07-03
• Vitenskapelig foredrag
  Van Helvoort, Antonius; Dasa, Lakshmi Narayana; Grønsberg, Sondre; Patriarche, G.; Zhou, Hailong; Fimland, Bjørn-Ove. (2009) Dark field transmission electron microscopy techniques for structural characterization of semiconductor nanowire heterostructures. IoP EMAG 2009 , Sheffield 2009-09-08 - 2009-09-11
• Vitenskapelig foredrag
  Weman, Helge. (2009) Heterostructured III-V nanowires with mixed crystal phases: New possibilities for band structure engineering. Univ. of Cincinnati Invited Physics Seminar at Univ. of Cincinnati , Cincinnati 2009-12-10 - 2009-12-10
• Vitenskapelig foredrag
  Weman, Helge. (2009) Challenges and possibilities of heterostructured semiconductor nanowires for photonic device applications. NTNU NanoLab NTNU NanoLab Seminarseries , Trondheim 2009-10-13 - 2009-10-13
• Vitenskapelig foredrag
  Weman, Helge. (2009) Heterostructured III-V nanowires with mixed crystal phases: New possibilities for band structure engineering. Georgia Tech., Atlanta Post deadline talk at Third International Conference on One-dimensional Nanomaterials, Atlanta, USA , Atlanta 2009-12-07 - 2009-12-09
• Vitenskapelig foredrag
  Weman, Helge. (2009) Micro-photoluminescence study of hetero-structured GaAs/AlGaAs and GaAs/GaAsSb nanowires grown by molecular beam epitaxy. Invited talk at Int. Conf. on Transport and Optical Properties of Nanomaterials, Allahabad, India , Allahabad 2009-01-05 - 2009-01-08
• Poster
  Dasa, Lakshmi Narayana; Rogstad, Espen; Scheffler, Martha; Van Helvoort, Antonius; Zhou, Hailong; Patriarche, G.. (2009) Diffusion-limited growth of GaAs nanowires by Au-assisted molecular beam epitaxy. 4th GDR meeting , Autrans 2009-06-30 - 2009-07-03
• Poster
  Zhou, Hailong; Dasa, Lakshmi Narayana; Hoang, Thang Ba; Anthonysamy, Fervin Moses; Van Helvoort, Antonius; Fimland, Bjørn-Ove. (2009) Characterization of heterostructured III-V nanowires grown by molecular beam epitaxy. NTNU Nanolab 4th NTNU Nanolab User Meeting , Trondheim 2009-05-13 -
• Poster
  Dasa, Lakshmi Narayana; Patriarche, G; Van Helvoort, Antonius; Zhou, Hailong; Fimland, Bjørn-Ove; Weman, Helge. (2009) Growth and structural characterization of axial heterostructured GaAs/GaSb nanowires grown by molecular beam epitaxy. Georgia Tech., Atlanta 3rd International conf. on One-dimensional Nanomaterials , Atlanta 2009-12-07 - 2009-12-09
• Poster
  Skåre, Daniel; Weigand, Christian Carl; Ladam, Cecile; Vardøy, Astrid-Sofie Borge; Dahl, Øystein; Bergren, Matt. (2009) Pulsed laser deposition of ZnO nanostructures for hybrid inorganic/organic solar cells. Centre for Renewable Energy (SFFE) Renewable Energy R&D-seminar, OPV2009: PV-materials , Oppdal 2009-03-19 - 2009-03-21
• Poster
  Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Anthonysamy, Fervin Moses; Zhou, Hailong; Hoang, Thang Ba; Fimland, Bjørn-Ove. (2009) Optimization of heterointerfaces in axial heterostructured nanowires grown by molecular beam epitaxy. CNRS 4th Nanowire growth workshop , Paris 2009-10-26 - 2009-10-27
• Poster
  Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Anthonysamy, Fervin Moses; Zhou, Hailong; Hoang, Thang Ba; Fimland, Bjørn-Ove. (2009) Effect of growth-interruption on structural and optical properties of GaAs/GaAsSb axial heterostructured nanowires. Materials Research Society Materials Res. Soc. 2009 Fall Meeting, Symposium M: Multifunction at the Nanoscale through Nanowires , Boston 2009-11-29 - 2009-12-04
• Poster
  Svendsen, Guro Kristin; Dupertuis, M.-A.; Weman, Helge; Skaar, Johannes. (2009) Modeling of electronic and optical properties of heterostructured semiconductor nanowires. NFR NANOMAT conference 2009 , Lillehammer 2009-06-16 - 2009-06-17
• Populærvitenskapelig foredrag
  Svendsen, Guro Kristin; Dupertuis, M.-A.; Weman, Helge; Skaar, Johannes. (2009) Modeling of optical and electronic properties of semiconductor nanowires. Lithuanian Physical Society Northern optics 2009 , Vilnius 2009-08-26 - 2009-08-28
• Populærvitenskapelig foredrag
  Weman, Helge. (2009) Elektronikk, IT og IKT. Invitert foredrag til Ukekonferansen ved UKA09 , Trondheim 2009-10-08 - 2009-10-08

2008

• Vitenskapelig foredrag
  Svendsen, Guro Kristin; Weman, Helge; Skaar, Johannes. (2008) Modal reflection properties of nanowire waveguides. NTNU 17th Int. Laser Physics Workshop , Trondheim 2008-06-30 - 2008-07-04
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Dasa, Lakshmi Narayana; Fimland, Bjørn-Ove; Weman, Helge; Karlsson, K.F.; Holtz, P.O.. (2008) Radiative emission from a type-II GaAsSb segment in a single GaAs nanowire. 15th Int. Conf. on Superlattices, Nanostructures and Nanodevices , Natal 2008-08-03 - 2008-08-08
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Dasa, Lakshmi Narayana; Fimland, Bjørn-Ove; Weman, Helge; Karlsson, K.F.. (2008) Investigation of the structural and optical properties of single GaAs/GaAsSb/GaAs nanowire quantum dots. NTNU 17th Int. Laser Physics Workshop , Trondheim 2008-06-30 - 2008-07-04
• Vitenskapelig foredrag
  Zhou, Hailong; Dasa, Lakshmi Narayana; Hoang, Thang Ba; Anthonysamy, Fervin Moses; Fimland, Bjørn-Ove; Weman, Helge. (2008) Growth, structural and optical characterizations of GaAs/AlGaAs core-shell nanowires. 3rd Int. Workshop on Nanowire Growth Mechanisms , Duisburg 2008-09-15 - 2008-09-16
• Vitenskapelig foredrag
  Hoang, Thang Ba; Dasa, Lakshmi Narayana; Patriarche, G.; Anthonysamy, Fervin Moses; Zhou, Hailong; Van Helvoort, Antonius. (2008) Growth and characterization of single wurtzite GaAs nanowires with defect-free zinc blende GaAsSb inserts. Materials Res. Soc. 2008 Fall Meeting, Symposium LL: Nanowires - Synthesis, Properties, Assembly, and Applications , Boston 2008-12-01 - 2008-12-05
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Patriarche, G.; Zhou, Hailong; Anthonysamy, Fervin Moses; Harmand, J.C.; Fimland, Bjørn-Ove. (2008) Growth and characterization of GaAs nanowires with GaAsSb inserts grown by molecular beam epitaxy. 15th International Conference on Molecular Beam Epitaxy , Vancouver 2008-08-03 - 2008-08-08
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge; Karlsson, K.F.. (2008) Photoluminescence study of GaAs-based nanowires grown by molecular beam epitaxy. NTNU 3rd NTNU Nanoscience & Nanotechnology workshop , Trondheim 2008-03-06 - 2008-03-06
• Vitenskapelig foredrag
  Weigand, Christian Carl; Valset, K.; Fagerberg, Ragnar; Ladam, C.; Grepstad, Jostein; Weman, Helge. (2008) Pulsed laser deposition growth of ZnO nanostructures for electron transport in hybrid inorganic/organic solar cells. NTNU 3rd Nanolab User Meeting , Trondheim 2008-03-06 -
• Poster
  Svendsen, Guro Kristin; Weman, Helge; Skaar, Johannes. (2008) Modeling of modal properties of nanowire lasers. Norwegian Electro-Optics meeting , Hurtigruten ship M/S Midnatsol between Tromsö and Trondheim 2008-03-26 - 2008-03-28
• Poster
  Weigand, Christian Carl; Bergren, M.R.; Valset, K.; Carey, D.; Fagerberg, Ragnar; Ladam, C.. (2008) Characterization of ZnO thin films grown by pulsed laser deposition for hybrid inorganic/organic solar cells. 23rd European Photovoltaic Solar Energy Conference , Valencia 2008-09-01 - 2008-09-05
• Poster
  Dasa, Lakshmi Narayana; Zhou, Hailong; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge; Patriarche, G.. (2008) A novel effect of Sb on the crystalline structure of GaAs nanowires grown by MBE. 3rd Int. Workshop on Nanowire Growth Mechanisms , Duisburg 2008-09-15 - 2008-09-16
• Poster
  Dasa, Lakshmi Narayana; Patriarche, G.; Zhou, Hailong; Anthonysamy, Fervin Moses; Hoang, Thang Ba; Van Helvoort, Antonius. (2008) Growth and characterization of heterostructured III-V nanowires by molecular beam epitaxy. NTNU 1st Int. Nanosymposium@NTNU , Trondheim 2008-09-11 - 2008-09-12
• Poster
  Baker, D.J.; Allen, C.G.; Albin, J.M.; Oertli, H.E.; Bergren, M.R.; Berman, T.D.. (2008) Functionalized zinc oxide for improved organic photovoltaic systems. Mat. Res. Soc. 2008 Fall Mtg., Symposium H: Physics and Technology of Organic Semiconductor Devices , Boston 2008-12-01 - 2008-12-05
• Poster
  Weigand, Christian Carl; Bergren, M.R.; Valset, K.; Carey, D.; Fagerberg, Ragnar; Ladam, C.. (2008) Characterization of ZnO layers grown by pulsed laser deposition for hybrid inorganic/organic solar cells. NTNU 1st Intl. Nanosymposium@NTNU , Trondheim 2008-11-09 - 2008-12-09
• Poster
  Anthonysamy, Fervin Moses; Dasa, Lakshmi Narayana; Fimland, Bjørn-Ove; Weman, Helge; Karlsson, K.F.; Holtz, P.O.. (2008) Micro-photoluminescence study of heterostructured GaAs/AlGaAs and GaAs/GaAsSb nanowires grown by molecular beam epitaxy. 29th Int. Conf. on the Physics of Semiconductors , Rio de Janeiro 2008-07-27 - 2008-08-01
• Poster
  Anthonysamy, Fervin Moses; Dasa, Lakshmi Narayana; Fimland, Bjørn-Ove; Weman, Helge; Karlsson, K.F.; Holtz, P.O.. (2008) Micro-photoluminescence study of heterostructured GaAs/AlGaAs and GaAs/GaAsSb nanowires grown by molecular beam epitaxy. NTNU 1st Int. Nanosymposium@NTNU , Trondheim 2008-09-11 - 2008-09-12

2007

• Vitenskapelig foredrag
  Weman, Helge. (2007) Nanostructured materials for photonic applications. Advanced Industrial Science and Technology (AIST) AIST-Norway Nano symposium , Osaka 2007-12-03 - 2007-12-03
• Vitenskapelig foredrag
  Weman, Helge. (2007) Semiconductor quantum-wires and nano-wires for optoelectronic applications. Queen Mary, University of London International Conference on Optical, Optoelectronic and Photonic Materials and Applications , London 2007-07-30 - 2007-08-03
• Poster
  Dheeraj, D.L.; Nilsen, Tron Arne; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2007) Fabrication and characterization of GaAs nanowires grown by molecular beam epitaxy. 2nd NTNU Nanoscience & Nanotechnology workshop , Trondheim 2007-03-07 - 2007-03-07
• Poster
  Lyo, S.K.; Karlsson, F.K.; Weman, Helge; Leifer, K.; Rudra, A.; Kapon, E.. (2007) Exciton energy transfer in confined systems: Effect of the dimensionality. International Complex Adaptive Materials Workshop , Santa Fe 2007-12-03 - 2007-12-03
• Poster
  Dheeraj, D.L.; Nilsen, Tron Arne; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2007) Fabrication and structural characterization of GaAs nanowires grown by molecular beam epitaxy. Norges Forskningsråd NANOMAT Conference , Bergen 2007-06-06 - 2007-06-07
• Poster
  Dheeraj, D.L.; Sartel, C.; Travers, L.; Harmand, J.C.; Patriarche, G.; Fimland, Bjørn-Ove. (2007) Importance of initial growth conditions during the growth of III-V nanowires by molecular beam epitaxy. 2nd International Conf. on One-dimensional Nanomaterials , Malmö 2007-09-26 - 2007-09-29

2006

• Vitenskapelig foredrag
  Weman, Helge. (2006) Fabrication and characterization of nanophotonic structures and devices. NTNU 1st NTNU NanoLab User Meeting , Jægtdvolden 2006-03-09 - 2006-03-10
• Vitenskapelig foredrag
  Weman, Helge. (2006) Semiconductor quantum-wires and nano-wires for photonic applications. NTNU Prof. H.J. Mooij Nanoscience-Nanotechnology Seminar , Trondheim 2006-05-30 - 2006-05-30
• Vitenskapelig foredrag
  Lyo, S.K.; Karlsson, F.K.; Weman, Helge; Rudra, A.; Kapon, E.. (2006) Exciton energy transfer between asymmetric quantum wires. American Physical Society March Meeting of the American Physical Society , Baltimore 2006-03-13 - 2006-03-17
• Vitenskapelig foredrag
  Weman, Helge; Karlsson, F.K.; Lyo, S.K.; Leifer, K.; Rudra, A.; Kapon, E.. (2006) Exciton transfer efficiency between asymmetric coupled GaAs V-groove quantum wires. Annual Meeting of The Condensed Matter Physics with Atomic Physics Division of the Norwegian Physical Society , Gålå 2006-09-13 - 2006-09-15
• Vitenskapelig foredrag
  Weman, Helge; Palmgren, S.; Reichardt, H.; Karlsson, F.K.; Rudra, A.; Kapon, E.. (2006) Photonic V-groove quantum wire devices. Northern Optics , Bergen 2006-06-14 - 2006-06-16
• Poster
  Palmgren, S.; Weman, Helge; Schoenberg, A.; Karlsson, F.K.; Rudra, A.; Kapon, E.. (2006) Optical absorption spectra in V-groove quantum wires: Experiment and theory. Northern Optics , Bergen 2006-06-14 - 2006-06-16

2005

• Poster
  Karlsson, F.K.; Weman, Helge; Lyo, S.K.; Rudra, A.; Kapon, E.. (2005) Strongly reduced carrier/exciton transfer efficiency between parallel quantum wires: a comparison with quantum wells. California Nanosystems Institute, Santa Barbara 12th International Conference on Modulated Semiconductor Structures , Albuquerque, New Mexico 2005-07-10 - 2005-07-15
• Poster
  Palmgren, S.; Reichardt, H.; Weman, Helge; Schoenberg, A.; Pelucchi, E.; Rudra, A.. (2005) V-groove quantum wire waveguide devices. Swiss Federal Insitute of Technology (EPFL) 11th European Workshop on Metalorganic Vapour Phase Epitaxy , Lausanne 2005-06-05 - 2005-06-08
• Poster
  Weman, Helge; Palmgren, S.; Reichardt, H.; Schoenberg, A.; Pelucchi, E.; Rudra, A.. (2005) V-groove quantum wire devices. Lunds Universitet 1st International Symposium on Semiconductor Nanowires , Lund 2005-10-05 - 2005-10-06
• Vitenskapelig foredrag
  Weman, Helge. (2005) Nano-photonic devices based on self-ordered growth on V-grooved GaAs substrates. Forsvarets forsknings institutt Kollokvium , Kjeller 2005-11-04 - 2005-11-04
• Vitenskapelig foredrag
  Weman, Helge; Palmgren, S.; Reichardt, H.; Karlsson, F.K.; Kapon, E.. (2005) V-groove quantum wire emitters and modulators. Stiftelsen för strategisk forskning Conference in Materials Science , Göteborg 2005-05-18 - 2005-05-19