2022

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

2021

• 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. 21st International Conference on Molecular Beam Epitaxy . CINVESTAV; Puerto Vallarta and Virtual. 2021-09-06 - 2021-09-09.
• Intervju
  Mukherjee, Anjan; Fimland, Bjørn-Ove; Weman, Helge. (2021) Gallium arsenide nanowire solar cell with 7.7% efficiency. 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 [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/ [Internett]. 2021-11-05.
• Vitenskapelig foredrag
  Weman, Helge. (2021) AlGaN nanowire UV LEDs using graphene as a transparent conducting substrate. Invited talk "The XXIst International Workshop on the Physics of Semiconductor Devices (IWPSD 2021)" . Indian Institute of Technology Delhi; 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. Invited talk "The 7th International Forum on Wide Bandgap Semiconductors " . China Solid State Lighting Alliance (CSA); Shenzhen. 2021-12-06 - 2021-12-08.
• Vitenskapelig foredrag
  Weman, Helge. (2021) AlGaN nanowire UV LEDs using graphene as substrate and transparent electrode. Invited talk "Quantum Science and Condensed Matter Seminar" . EPFL; Lausanne. 2021-06-25 - 2021-06-25.
• Vitenskapelig foredrag
  Weman, Helge. (2021) AlGaN nanowire UV LEDs using graphene as substrate and transparent electrode. Invited talk "Epitaxy on 2D materials for layer release and their applications" . MIT; Virtual. 2021-06-28 - 2021-06-30.
• Populærvitenskapelig foredrag
  Weman, Helge. (2021) Litt bakgrunn og historikk til opprinnelsen av CrayoNano. Feiring CrayoNano betaling av patenter fra NTNU . IE fakultetet NTNU; Trondheim. 2021-12-22 - 2021-12-22.
• Populærvitenskapelig foredrag
  Weman, Helge. (2021) Nanowire/graphene UVC LEDs. NTNU Nanokveld . Timini NTNU; Trondheim. 2021-04-19 - 2021-04-19.

2020

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

2019

• Intervju
  Høiaas, Ida Marie; Weman, Helge; Fimland, Bjørn-Ove. (2019) New nanomaterial to replace mercury. Norwegian SciTech News [Internett]. 2019-04-25.
• Intervju
  Høiaas, Ida Marie; Weman, Helge; Fimland, Bjørn-Ove. (2019) Ny og ufarlig elektronisk komponent kan erstatte kvikksølv. Teknisk Ukebald [Fagblad]. 2019-05-28.
• Intervju
  Høiaas, Ida Marie; Weman, Helge; Fimland, Bjørn-Ove. (2019) Utviklet nanomateriale som kan erstatte kvikksølv. Gemini.no [Internett]. 2019-05-27.
• Vitenskapelig foredrag
  Liudi Mulyo, Andreas; Kim, Dong Chul; Høiaas, Ida Marie; Ahtapodov, Lyubomir; Weman, Helge; Kishino, Katsumi; Fimland, Bjørn-Ove. (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. The 13th International Conferences on Nitride Semiconductors . Material Research Society; Bellevue, Washington (Seattle). 2019-07-07 - 2019-07-12.
• 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. Nanowire Week 2019 . Scuola Normale Superiore and Istituto Nanoscienze-CNR; Pisa. 2019-09-23 - 2019-09-27.
• 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.
• 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. 16th European microbeam analysis society meeting . EMAS; Trondheim. 2019-05-19 - 2019-05-23.
• Vitenskapelig foredrag
  Mukherjee, Anjan; Mosberg, Aleksander Buseth; Ren, Dingding; Li, Yang; Ahtapodov, Lyubomir; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2019) Radial Junction GaAs Nanowire Solar Cells: Towards Efficient Performance. 10th Annual NanoNetwork conference . NanoNetwork; Tromsø. 2019-06-17 - 2019-06-19.
• Vitenskapelig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, A Mazid; Dheeraj, Dasa; Weman, Helge; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (2019) Contacting nanostrusctures: detailed characterisation of the Au/Ge/GaAs nanowire interface. Microscopy of Semiconducting Materials (MSM-XXI) . IoP; 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. 1st International Workshop on Crystal-Phase Structures in Nanowires . DTU; Copenhagen. 2019-04-04 - 2019-04-05.
• Poster
  Ren, Dingding; Chen, Z; Nilsen, Julie Stene; Ahtapodov, Lyubomir; Borisov, B.; Mukherjee, Anjan; Li, Y; Liu, Z; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (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
  Weman, Helge. (2019) AlGaN nanowire UV LED using graphene as substrate and transparent bottom electrode. Invited talk at Neel Institute . 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. Invited talk Beijing Graphene Institute . Beijing Graphene Insiitute; Beijing. 2019-11-28.
• Vitenskapelig foredrag
  Weman, Helge. (2019) AlGaN nanowire UV LED using graphene as substrate and transparent bottom electrode. Invited talk 16th China International Forum on Solid State Lighting . China Solid State Lighting Alliance; Shenzhen. 2019-11-25 - 2019-11-27.
• Populærvitenskapelig foredrag
  Weman, Helge. (2019) Nanowire UV LEDs using graphene as substrate and transparent electrode. Grey Goo Symposium . Nanoteknologistudiet NTNU; Trondheim. 2019-02-14 - 2019-02-14.
• Intervju
  Weman, Helge. (2019) Scientists create ultraviolet light on a graphene surface. Nanowerk [Internett]. 2019-05-23.
• Intervju
  Weman, Helge. (2019) UV LEDs on graphene: Cheaper and ten times more efficient. eeNews [Internett]. 2019-02-13.
• Intervju
  Weman, Helge. (2019) Un nuevo nanomaterial reemplaza al mercurio para producir luz UVC. Europapress.es [Internett]. 2019-04-26.
• Faglig foredrag
  Weman, Helge. (2019) Using graphene as epitaxial substrate and transparent electrode for semiconductor devices. Invited talk at Graphene 2019 . Phantoms; Rome. 2019-06-25 - 2019-06-28.

2018

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

2017

• Faglig foredrag
  Fauske, vidar T.; Huh, Junghwan; Divitini, Giorgio; Munshi, A Mazid; Dheeraj, D.L.; Ducati, C; Weman, Helge; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (2017) In-situ studying the heat‐induced replacement of GaAs by Au. In-situ TEM sample-management solution workshop . LOT FRance/DENS Solutions; Grenoble. 2017-03-16 - 2017-03-16.
• 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. Nano@NTNU . Nanolab NTNU og Nano Network; Trondheim. 2017-12-06 - 2017-12-07.
• 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. Carbonhagen 2017 . DTU, Danmark; Copenhagen. 2017-08-16.
• 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
  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.
• 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. Nano@NTNU Symposium . Nanolab 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. Compound Semiconductor Week 2017 . PDI Berlin; Berlin. 2017-05-14 - 2017-05-18.
• 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. EMAG/MMC . IoP/RMS; Manchester. 2017-07-03 - 2017-07-06.
• 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. Nanowire Week . Lund University; Lund. 2017-05-29 - 2017-06-02.
• 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.
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Seo, Miri; Kim, Keun Sook; Lee, Sang Wook; Munshi, Abdul Mazid; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge. (2017) Embedded single GaAs nanowire/graphene hybrid devices fabricated by a position- controlled micro transfer and imprinting technique. Nanowire week . Lund University; Lund. 2017-05-29 - 2017-06-02.
• Vitenskapelig foredrag
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Seo, Miri; Nam, Jung Tae; Kim, Keun Soo; Munshi, Mazid; Dasa, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (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.
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Seo, Miri; Nam, Jungtae; Kim, Keun Sook; Lee, Sang Wook; Munshi, Mazid; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (2017) An Imprinting Technique to Fabricate Embedded Single GaAs Nanowire/Graphene Hybrid Devices. Carbonhagen 2017 . DTU, Danmark; Copenhagen. 2017-08-16 - 2017-08-17.
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Seo, Miri; Nam, Jungtae; Kim, Keun Sook; Lee, Sang Wook; Munshi, Mazid; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (2017) Single GaAs nanowire/graphene hybrid devices fabricated by a position controlled micro transfer and imprinting technique for embedded structures. MRS Spring meeting 2017 . MRS; Phoenix. 2017-04-17 - 2017-04-21.
• Poster
  Ren, Dingding; Ahtapodov, Lyubomir; Nilsen, Julie Stene; Yang, J.; Gustafsson, A; Huh, Junghwan; Kim, D.C.; Conibeer, G; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2017) High-Q factor, single-mode, room-temperature lasing from GaAsSb/GaAs nanowire superlattices. Nanowire Week . Lund University; Lund. 2017-05-29 - 2017-06-02.
• Vitenskapelig foredrag
  Ren, Dingding; Ahtapodov, Lyubomir; Nilsen, Julie Stene; Yang, J.; Gustafsson, Anders; Huh, Junghwan; Conibeer, G; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2017) Ternary GaAsSb Nanowire for Optoelectronic Applications. Nano@NTNU symposium 2017 . NTNU NanoLab; Trondheim. 2017-12-06 - 2017-12-07.
• Faglig foredrag
  Van Helvoort, Antonius; Garmannslund, Andreas; Bogen, J; Nilsen, Julie Stene; Fauske, vidar T.; Ren, Dingding; Weman, Helge; Fimland, Bjørn-Ove. (2017) Improved compositional mapping of heterostructured nanowire (by STEM-EDX). Nanowire Week . Lund University; Lund. 2017-05-29 - 2017-06-02.
• Faglig foredrag
  Weman, Helge. (2017) AlGaN nanostructures on graphene: A new disruptive technology for UV LEDs. LED Taiwan 2017 . LED Taiwan; Taipei. 2017-04-12 - 2017-04-12.
• Faglig foredrag
  Weman, Helge. (2017) AlGaN nanowire flip-chip UV LEDs grown on graphene/glass. SSL China 2017 . SSL China; Beijing. 2017-11-01 - 2017-11-03.
• Populærvitenskapelig foredrag
  Weman, Helge. (2017) Changing the UV LED industry and beyond. TTO vårslæpp . NTNU TTO; Trondheim. 2017-06-07 - 2017-06-07.
• Intervju
  Weman, Helge. (2017) En reaktor blir installert i Trondheim. Den gror halvleder nanotråder til UV LED som dreper bakterier og desinfiserer. Teknisk Ukeblad [Tidsskrift]. 2017-08-27.
• Vitenskapelig foredrag
  Weman, Helge. (2017) Epitaxial growth of heterostructured III-V semiconductor nanowires on graphene. Invited talk KIST, Korea . KIST; Jeonbuk. 2017-04-10 - 2017-04-10.
• Vitenskapelig foredrag
  Weman, Helge. (2017) Epitaxial growth of heterostructured III-V semiconductor nanowires on graphene. Invited talk Erik Bakkers group, Eindhoven TU . Eindhoven TU; Eindhoven. 2017-05-02 - 2017-05-02.
• Vitenskapelig foredrag
  Weman, Helge. (2017) Epitaxial growth of heterostructured III-V semiconductor nanowires on graphene. Invited talk at South China University . South China University; Changsha. 2017-04-19 - 2017-04-19.
• Vitenskapelig foredrag
  Weman, Helge. (2017) Epitaxial growth of semiconductor nanostructures on graphene. Carbonhagen 2017 . DTU, Danmark; Copenhagen. 2017-08-16 - 2017-08-17.
• Intervju
  Weman, Helge. (2017) Gründerselskapet CrayoNano AS vil nå et etablere et pilotanlegg for utvikling av en ny type UV-LED i Trondheim. Gemini [Internett]. 2017-06-15.
• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene hybrid structures and devices. Fredagkollokvie fysikk . NTNU; Trondheim. 2017-10-27 - 2017-10-27.
• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene hybrid structures and devices. Invited talk in Prof. Zetian Mi's group Uni. Michigan . Uni. Michigan; Ann Arbor. 2017-10-16 - 2017-10-16.
• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene hybrid structures and devices. Invited talk in prof. Zhongfan Liu-s group . Beijing Graphene Institute; Beijing. 2017-10-31 - 2017-10-31.
• 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.
• Vitenskapelig foredrag
  Weman, Helge. (2017) III-V semiconductor nanowire/graphene structures and photonic devices. Invited talk at KTH . Albanova, KTH; Stockholm. 2017-10-25 - 2017-10-25.
• Intervju
  Weman, Helge. (2017) Norway pioneers new UV LEDs. Gemini [Internett]. 2017-08-03.
• Intervju
  Weman, Helge. (2017) Sluppen klar for industrieventyr. Adressa [Avis]. 2017-06-06.
• Intervju
  Weman, Helge. (2017) Teknologiselskap henter 50 millioner og ny ledelse. Dagens Næringsliv [Avis]. 2017-06-15.
• Intervju
  Weman, Helge. (2017) UV LED av nanotråder på grafén. Elektronikknet [Fagblad]. 2017-06-28.

2016

• Poster
  Høiaas, Ida Marie; KIM, DONG CHUL; Weman, Helge. (2016) Aluminum-induced crystallization of Si on graphene for optoelectronic devices. Carbonhagen 2016 . København Universitet og DTU; København. 2016-08-17 - 2016-08-18.
• 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.
• Poster
  KIM, DONG CHUL; Jungtae, Nam; Hoyeol, Yun; Seungjin, Nam; Jun Yeong, Hwang; Sang Wook, Lee; Weman, Helge; Keun Sook, Kim. (2016) Chemical vapor deposition of graphene and its physisorption strain on Pt substrates. Carbonhagen 2016 ; Copenhagen. 2016-08-17 - 2016-08-18.
• Poster
  KIM, DONG CHUL; Jungtae, Nam; Hoyeol, Yun; Seungjin, Nam; Jun Yeong, Hwang; Sang Wook, Lee; Weman, Helge; Keun Sook, Kim. (2016) Investigation of graphene growth on platinium by chemical vapor deposition. Graphene2016 ; Genoa. 2016-04-18 - 2016-04-22.
• 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.
• 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.
• 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 Spring Meeting . Japanese Physical Society; Tokyo. 2016-03-19 - 2016-03-22.
• Poster
  Mukherjee, Anjan; KIM, DONG CHUL; Yun, Hoyeol; Munshi, Mazid; Dasa, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge. (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.
• Vitenskapelig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, A Mazid; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge; Van Helvoort, Antonius. (2016) Pd/Ge/Au contacts on GaAs Nanowires. Nano@NTNU workshop . NTNU NanoLab; Trondheim. 2016-11-17 - 2016-11-18.
• Faglig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, A; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge; Van Helvoort, Antonius. (2016) Characterization of Pd/Ge/Au contacts on GaAs Nanowires. 67th Scandem Meeting . Scandem; Trondheim. 2016-06-07 - 2016-06-10.
• Faglig foredrag
  Nilsen, Julie Stene; Huh, Junghwan; Munshi, A; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge; Van Helvoort, Antonius. (2016) Transmission electron microscopy study of Pd/Ge/Au contacts to GaAs nanowires. 7th NanoNetwork workshop . NanoNetwork; Trondheim. 2016-06-13 - 2016-06-15.
• Poster
  Nilsen, Julie Stene; Mosberg, Aleksander Buseth; Garmannslund, Andreas; Reinertsen, Johannes F; Munshi, A Mazid; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge; Van Helvoort, Antonius. (2016) Self-Induced Compositional Variations in GaAs/AlGaAs Core-Shell Nanowires. European Microscopy Congress 2016 . EMS; Lyon. 2016-08-28 - 2016-09-02.
• Faglig foredrag
  Ren, Dingding; Dheeraj, D.L.; Jin, C; Nilsen, Julie Stene; Huh, Junghwan; Reinertsen, Johannes F; Munshi, A; Gustafsson, Anders; Van Helvoort, Antonius; Weman, Helge; Fimland, Bjørn-Ove. (2016) Self-catalyzed GaAsSb nanowires grown on silicon and graphene by molecular beam epitaxy: high-yield with stabilized crystal phase. 7th NanoNetwork workshop . NanoNetwork; Trondheim. 2016-06-13 - 2016-06-15.
• Faglig foredrag
  Ren, Dingding; Dheeraj, D.L.; Nilsen, Julie Stene; Huh, Junghwan; Van Helvoort, Antonius; Weman, Helge; Fimland, Bjørn-Ove. (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
  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.
• Faglig foredrag
  Van Helvoort, Antonius; Fauske, Vidar Tonaas; Huh, Junghwan; Divitini, G; Dheeraj, D.L.; Munshi, A; Ducati, C; Weman, Helge; Fimland, Bjørn-Ove. (2016) The kinetics and dynamics of Au-GaAs solid state replacements, studied by in situ TEM. Dens preScandem Workshop . DENS; Trondheim. 2016-06-07 - 2016-06-07.
• 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.
• 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.
• 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
  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.
• 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.
• Intervju
  Weman, Helge. (2016) Grafén – fremtidens superstoff. NITO Refleks [Internett]. 2016-01-18.
• 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
  Weman, Helge. (2016) Ultraviolet LEDs: A killer application for graphene?. 2nd Annual China International Graphene Summit ; Shanghai. 2016-01-20 - 2016-01-21.

2015

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

2014

• Vitenskapelig foredrag
  Fauske, Vidar Tonaas; Huh, Junghwan; Erlbeck, Maximilian; KIM, DONG CHUL; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Weman, Helge; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (2014) In-situ electronic probing of nanostructures in a FIB. Nanolab 10th aniversium . NTNU Nanolab; Trondheim. 2014-11-10 - 2014-11-11.
• Vitenskapelig foredrag
  Huh, Junghwan; Yun, H.; KIM, DONG CHUL; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kauko, Hanne; Van Helvoort, Antonius; Lee, SW; Fimland, Bjørn-Ove; Weman, Helge. (2014) GaAsSb nanowire diodes based on self-induced compositional variation. Nanowire2014 ; Eindhoven. 2014-08-25 - 2014-08-29.
• Poster
  Kauko, Hanne; Grieb, Tim; Munshi, Abdul Mazid; Müller, Knut; Weman, Helge; Rosenauer, A.; Fimland, Bjørn-Ove; Van Helvoort, Antonius. (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
  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.
• 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
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; Reinertsen, Johannes F; Ahtapodov, Lyubomir; Lee, KD; Heidari, B.; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2014) Position controlled GaAs nanowires on 2-inch Si wafers using nanoimprint lithography. MRS Spring Meeting . MRS; San Francisco. 2014-04-22 - 2014-04-22.
• Poster
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; Ren, Dingding; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2014) Limitations of self-catalytic growth in controlling the diameter of GaAs nanowires on Si substrates. MBE2014 ; Flagstaff. 2014-09-07 - 2014-09-12.
• Poster
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; Ren, Dingding; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (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.; Weman, Helge; Riel, H.. (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.
• Vitenskapelig foredrag
  Signorello, G.; Lörtscher, E; Khomyakov, P.A.; Karg, S.; Dasa Lakshmi Narayana, Dheeraj; Gotsmann, B.; Weman, Helge; Riel, H.. (2014) Inducing a direct-to-pseudodirect bandgap transition in wutzite GaAs nanowires with uniaxial stress. Nanowire2014 ; Eindhoven. 2014-08-25 - 2014-08-29.
• 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.
• Intervju
  Weman, Helge. (2014) Bedre solceller og LED-lys. Aftenposten [Avis]. 2014-04-11.
• Intervju
  Weman, Helge. (2014) Better solar cells, better LED light and vast optical possibilities. phys.org [Internett]. 2014-04-14.
• Intervju
  Weman, Helge. (2014) Better solar cells, better LED light and vast optical possibilities. Science Daily [Internett]. 2014-04-11.
• Intervju
  Weman, Helge. (2014) Dette er fremtidens supermateriale. Adressa [Avis]. 2014-03-26.
• Intervju
  Weman, Helge. (2014) Fremtidens supermateriale. Aftenposten [Avis]. 2014-03-25.
• Intervju
  Weman, Helge. (2014) Graphene and a modified structure of nanowires will improve solar cells and LED lighting. alternative-energies.net [Internett]. 2014-04-18.
• Intervju
  Weman, Helge. (2014) Grønt lys for en ny verden. Tekna Magasinet No.1 2014 [Tidsskrift]. 2014-02-18.
• Populærvitenskapelig foredrag
  Weman, Helge. (2014) Halvleder-nanotråder på grafén for neste generasjon IKT. Invetert forelesning for 1e klasse ELSYS . NTNU; Trondheim. 2014-11-22 - 2014-11-22.
• 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.
• 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.
• Intervju
  Weman, Helge. (2014) IBM Combines Light Emission and Detection in Single Nanowire. IEEE Spectrum [Tidsskrift]. 2014-04-14.
• Vitenskapelig foredrag
  Weman, Helge. (2014) III-V semiconductor nanowires@NTNU. Nanolab 10th aniversium . NTNU Nanolab; Trondheim. 2014-11-10 - 2014-11-11.
• Intervju
  Weman, Helge. (2014) Nano-kongene. Finansavisen [Avis]. 2014-08-23.
• Intervju
  Weman, Helge. (2014) Nanokunnskap gir supersolceller. Gemini.no og forskning.no [Internett]. 2014-04-11.
• Intervju
  Weman, Helge. (2014) Nanowire light-emitting diodes. nanotechmag.com [Internett]. 2014-04-10.
• Intervju
  Weman, Helge. (2014) New physical phenomenon on nanowires seen for the first time. phys.org [Internett]. 2014-04-14.
• Intervju
  Weman, Helge. (2014) New physical phenomenon on nanowires seen for the first time. nanowerk.com [Internett]. 2014-04-11.
• Populærvitenskapelig foredrag
  Weman, Helge. (2014) Nobelprisen i fysikk 2014. Årets Nobelpris i fysikk . GLØSHAUGENS AKADEMIKERE; Trondheim. 2014-12-18 - 2014-12-18.
• Intervju
  Weman, Helge. (2014) Smått og godt. Dagens Næringsliv [Avis]. 2014-04-10.
• Intervju
  Weman, Helge. (2014) Strain and light emission in gallium arsenide nanowires. Semiconductor-today.com [Tidsskrift]. 2014-04-28.
• Intervju
  Weman, Helge. (2014) Stress Activates Light-Emitting Nanowires. Photonics [Tidsskrift]. 2014-04-23.
• 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) 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) Towards low-cost, high-efficiency semiconductor nanowire/graphene solar cells. Bring the Nanoworld Together . IIT Delhi & Oxford Instruments; New Delhi. 2014-11-27 - 2014-11-28.
• Intervju
  Weman, Helge. (2014) Tuning a single nanowire improves solar cells and LEDs. nanowerk.com [Internett]. 2014-04-11.
• Intervju
  Weman, Helge. (2014) Tweaking nanowires boosts solar cell and LED outputs. optics.org [Internett]. 2014-04-24.

2013

• 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.
• Vitenskapelig foredrag
  Ahtapodov, Lyubomir; Todorovic, Jelena; Reinertsen, Johannes F; Dasa Lakshmi Narayana, Dheeraj; Munshi, Abdul Mazid; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2013) Optical Characterization of Single Semiconductor Nanowires. MYFAB&NORFAB Meetting . Myfab og Norfab; 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; Weman, Helge. (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
  Dasa Lakshmi Narayana, Dheeraj; Munshi, Abdul Mazid; Fauske, Vidar Tonaas; KIM, DONG CHUL; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (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; Van Helvoort, Antonius. (2013) In-situ electrical and structural characterization of individual GaAs nanowire. EMAG2013 . IoP-EMAG; York. 2013-09-02 - 2013-09-06.
• Vitenskapelig foredrag
  Fauske, Vidar Tonaas; KIM, DONG CHUL; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge; Van Helvoort, Antonius. (2013) Mechanical and electrical characterization of nanowire-substrate interfaces. 4th Annual Nanonetwork Workshop . Nanonetwork; 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; Van Helvoort, Antonius. (2013) Site-specific, cross-sectional TEM samples of as-grown nanowires by FIB. NorfFab/MyFab user meeting . NorFab/MyFab; Uppsala. 2013-04-17 - 2013-04-18.
• 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
  Huh, Junghwan; KIM, DONG CHUL; Yun, H.; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kauko, Hanne; Van Helvoort, Antonius; Lee, S.W.; Fimland, Bjørn-Ove; Weman, Helge. (2013) Electrical Characteristics of Individual GaAsSb Nanowires Grown by Molecular Beam Epitaxy. 8th Nanolab usermeeting . NTNU Nanolab; Trondheim. 2013-11-12 - 2013-11-12.
• Vitenskapelig foredrag
  Huh, Junghwan; Kim, Dong-Chul; Yun, H.; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kauko, Hanne; Van Helvoort, Antonius; Lee, S.W.; Fimland, Bjørn-Ove; Weman, Helge. (2013) Effects on compositional variation on the electrical property of GaAsSb nanowires. MRS 2013 Fall Meeting . MRS; Boston. 2013-12-02 - 2013-12-06.
• Poster
  Huh, Junghwan; Kim, Dong-Chul; Yun, H.; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Kim, G.T.; Lee, S.W.; Fimland, Bjørn-Ove; Weman, Helge. (2013) Electrical properties of III-V semiconductor nanowires for solar cell applications. 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; Van Helvoort, Antonius; Weman, Helge. (2013) GaAs/AlGaAs core-shell nanowires for novel solar cell applications. Nanokonferansen 2013 . NRF; 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; Van Helvoort, Antonius; Weman, Helge. (2013) GaAs/AlGaAs core-shell nanowires for novel solar cell applications. Norwegian Solar Cell Conferance 2013 . FME sol; Oppdal. 2013-03-13 - 2013-03-15.
• Poster
  Kauko, Hanne; Munshi, Abdul Mazid; Lim, Cheng Guan; KIM, DONG CHUL; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Van Helvoort, Antonius; Weman, Helge. (2013) Novel solar cells based on GaAs/AlGaAs core-shell nanowires. 4th annual Nanonetwork workshop . Nanonetwork; Bergen. 2013-06-17 - 2013-06-19.
• 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
  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.
• Poster
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fauske, Vidar Tonaas; KIM, DONG CHUL; Todorovic, Jelena; Huh, Junghwan; Sandell, Susanne; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2013) GaAs nanowires grown on silicon and graphene for solar cell application. 4th annual NanoNetwork Workshop . Nanonetwork; Bergen. 2013-06-17 - 2013-06-19.
• 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.
• Populærvitenskapelig foredrag
  Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; KIM, DONG CHUL; Huh, Junghwan; Reinertsen, Johannes F; Ahtapodov, Lyubomir; Fimland, Bjørn-Ove; Weman, Helge; Fauske, Vidar Tonaas; Kauko, Hanne; Van Helvoort, Antonius; Lee, KD; heidari, B. (2013) Position Controlled GaAs Nanowires on Si using Nanoimprint Lithography. 8th Nanolab usermeeting . NTNU Nanolab; Trondheim. 2013-11-12 - 2013-11-12.
• Poster
  Nam, J.; Kim, Dong-Chul; Andersen, P.C.; Park, S.J.; Dae, D.J.; Munshi, Abdul Mazid; Dasa Lakshmi Narayana, Dheeraj; Fimland, Bjørn-Ove; Weman, Helge; Seo, S.; Kim, K.S.. (2013) Synthesis and characterization of graphene on Pt using CVD. Korean Physical Society Spring Meeting ; Daejon. 2013-04-24 - 2013-04-26.
• Intervju
  Weman, Helge. (2013) En planlagt tilfeldighet. Forskingsbladet [Avis]. 2013-06-07.
• 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.
• 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.
• Intervju
  Weman, Helge. (2013) Grafen forstærker lysets kraft. Videnskap DK [Internett]. 2013-04-01.
• Intervju
  Weman, Helge. (2013) Grafén – supermateriale som vil revolusjonere fremtidens datamaskin. IKT nytt [Internett]. 2013-07-13.
• Populærvitenskapelig foredrag
  Weman, Helge. (2013) Grafén-og nanoblyanter. Kunnskapsbyen . Arnfinn Stendahl Rokne, NTNU; Trondheim. 2013-11-27 - 2013-11-27.
• Intervju
  Weman, Helge. (2013) Graphene and Semiconductor Technology Together: Smaller, Cheaper, Better. Science Daily [Internett]. 2013-06-11.
• Intervju
  Weman, Helge. (2013) Graphene and semiconductor technology together: smaller, cheaper, better. Forskningsrådet [Internett]. 2013-05-30.
• 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 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 photonic applications. Invited talk at University of Copenhagen ; Copenhagen. 2013-11-01 - 2013-11-01.
• 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 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.
• 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
  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.
• Vitenskapelig foredrag
  Weman, Helge. (2013) III-V nanowire/graphene hybrid structures-A platform for future devices. Nanoscale communication technologies . NTNU; Trondheim. 2013-10-17 - 2013-10-17.
• Faglig foredrag
  Weman, Helge. (2013) II-V semiconductor nanowire project at NTNU. Norway-Texas meeting at NTNU . NTNU Nanolab and Rice University; Trondheim. 2013-10-15 - 2013-10-15.
• Intervju
  Weman, Helge. (2013) Mirakelmaterialet grafén vil føre til revolusjoner innen teknologi. Hardware.no [Internett]. 2013-09-03.
• Intervju
  Weman, Helge. (2013) Måtte holde teknologien hemmelig. Teknisk Ukeblad [Internett]. 2013-02-04.
• Faglig foredrag
  Weman, Helge. (2013) NaNordSun-Semiconductor Nanowire Based Solar Cells. Nordic Innovation meeting on Top-level Research Initiative . Nordic Innovation; Copenhagen. 2013-11-22 - 2013-11-22.
• Vitenskapelig foredrag
  Weman, Helge. (2013) Semiconductor nanowires grown on graphene. 4th annual NanoNetwork Workshop ; Bergen. 2013-06-17 - 2013-06-19.
• Programdeltagelse
  Weman, Helge; Fimland, Bjørn-Ove; Kim, Dong-Chul. (2013) Grafén-Forbløffende superstoff. NRK Schrödingers katt [TV]. 2013-03-14.
• Intervju
  Weman, Helge; Fimland, Bjørn-Ove; Kim, Dong-Chul. (2013) På vei mot noe stort. Forskningsrådet [Internett]. 2013-05-15.

2012

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

2011

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

2010

• Poster
  Ladam, C.; Weman, Helge; Vetaas Thomassen, M.; Weigand, Christian Carl; Røyset, Arne. (2010) Photoluminescence characterization of ZnO nanorods. Norwegian Electro-Optics meeting . NTNU; Ålesund. 2010-04-07 - 2010-04-09.
• 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. Norwegian Electro-Optics meeting . NTNU; Ålesund. 2010-04-07 - 2010-04-09.
• 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. 5th NanoLab user meeting . NTNU NanoLab; Trondheim. 2010-09-10 - 2010-09-10.
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Ahtapodov, Lyubomir; Hoang, Thang Ba; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (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
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Ahtapodov, Lyubomir; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2010) Engineering photoluminescence polarization in a single semiconductor nanowire. 5th NanoLab user meeting . NTNU NanoLab; Trondheim. 2010-09-10 - 2010-09-10.
• Poster
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Ahtapodov, Lyubomir; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (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.
• 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.
• 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
  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
  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. 5th NanoLab user meeting . NTNU NanoLab; 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; Zhou, Hailong; Anthonysamy, Fervin Moses; Hoang, Thang Ba; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2010) Growth of heterostructured III-V nanowires by molecular beam epitaxy for photonic applications. Photonics West . SPIE; San Francisco. 2010-01-23 - 2010-01-28.
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Zhou, Hailong; Anthonysamy, Fervin Moses; Hoang, Thang Ba; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2010) Tuning of the crystal phase in III-V nanowires grown by Au-assisted molecular beam epitaxy. MRS Spring meeting . MRS; San Fransisco. 2010-04-05 - 2010-04-05.
• Poster
  DONG CHUL, KIM; Ahtapodov, Lyubomir; Bø, A. B; Choi, J. W.; Ji, H.; Kim, G. T.; Moses, A. F.; Dheeraj, D.L.; Fimland, Bjørn-Ove; Weman, Helge. (2010) Photocurrent Spectroscopy of Single Wurtzite GaAs Nanowires. ICPS 2010 ; Seoul. 2010-07-25 - 2010-07-30.
• Vitenskapelig foredrag
  Furtak, T.E.; Baker, D.J.; Weigand, Christian Carl; Adamson, Jamie M.; Allen, C.G.; Yocom, A.E.; Patterson, L.S.; Weman, Helge; Ladam, C.; Olson, D.C.; Ginley, D.S.; Collins, R.T.. (2010) Surface Modification of Zinc Oxide Anodes in Organic Solar Cells. MRS Spring meeeting . Materials Research Society; San Francisco. 2010-04-05 - 2010-04-09.
• Poster
  Kim, D.C.; Ahtapodov, Lyubomir; Boe, A.B.; Choi, J.W.; Ji, H.; Kim, G.T.; Anthonysamy, Fervin Moses; Dasa, Lakshmi Narayana; Fimland, Bjørn-Ove; Weman, Helge. (2010) Photocurrent Spectroscopy of Single Wurtzite GaAs Nanowires. 30th International Conf. on the Physics of Semiconductors . Korea Physical Society; Seoul. 2010-07-25 - 2010-07-30.
• 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
  Weigand, Christian Carl; Baker, D.J.; Adamson, Jamie M.; Allen, C.G.; Bergren, M.R.; Steirer, K.X.; Olson, D.C.; Ladam, C.; Ginley, D.S.; Collins, R.T.; Furtak, T.E.; Weman, Helge. (2010) ZnO nanorod hybrid Organic/Inorganic Solar Cells and the effect of surface modifications. Renewable Energy Research Conference . NTNU; Trondheim. 2010-06-07 - 2010-06-10.
• Poster
  Weigand, Christian Carl; Grepstad, Jostein; Bergren, Matt; Weman, Helge; Furtak, Tom; Collins, Reuben; Fagerberg, Ragnar; Ladam, Cecile; Vullum, Per Erik; Dahl, Øystein; Tveit, Johannes. (2010) ZnO nanostructures grown by pulsed laser deposition. 1st Annual Workshop of the Norwegian PhD Network on Nanotechnology for Microsystems . Norwegian PhD Network on Nanotechnology for Microsystems; Tønsberg. 2010-05-31 - 2010-06-02.
• Poster
  Weigand, Christian Carl; Grepstad, Jostein; Weman, Helge; Ladam, C.; Vullum, Per Erik; Dahl, Øystein; Bergren, M.R.; Collins, R.T.; Furtak, T.E.; Tveit, Johannes; Holmestad, Randi. (2010) ZnO nanosheets grown by pulsed laser deposition. 5th Nanowire Growth Workshop ; Rome. 2010-11-03 - 2010-11-05.
• Vitenskapelig foredrag
  Weigand, Christian Carl; Ladam, C.; Bergren, Matt; Tveit, Johannes; Vullum, Per Erik; Dahl, Øystein; Fagerberg, Ragnar; Collins, R.T.; Furtak, T.E.; Grepstad, Jostein; Weman, Helge. (2010) ZnO nanostructures grown by pulsed laser deposition. 5th NTNU Nanolab Users Mtg. . NTNU NanoLab; Trondheim. 2010-09-10.
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires for photonic applications. Invited seminar Korea University, Seoul-Korea . Prof. Gyu Tae Kim, Korea University; Seoul. 2010-07-22 - 2010-07-22.
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires for photonic applications. Invited seminar Seoul National University, Korea . Prof. Yung Woo Park, Seoul National University; Seoul. 2010-07-21 - 2010-07-21.
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires for photonic applications. Invited seminar Samsung Electronics,Korea . Dr. Seo Sunae, Samsung Electronics; Suwon. 2010-07-23 - 2010-07-23.
• Vitenskapelig foredrag
  Weman, Helge. (2010) Heterostructured III-V nanowires with mixed crystal phases. Invited seminar University of California Los Angeles . UCLA; 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. Invited seminar University of California San Diego . UCSD; San Diego. 2010-02-01 - 2010-02-01.
• Vitenskapelig foredrag
  Weman, Helge. (2010) Structural and optical properties of single III-V nanowires with different crystal phases. Invited seminar at NorPRINS workshop, Oslo . University of Oslo and IMEC, Belgium; Oslo. 2010-03-04 - 2010-03-05.

2009

• Vitenskapelig foredrag
  Røyset, Arne; Fagerberg, Ragnar; Weman, Helge. (2009) Cool, Small and Bright: cryogenic micro-photoluminescence for photovoltaic materials. Renewable Energy R&D-seminar, OPV2009: PV-materials . FFI; Oppdal. 2009-03-19 - 2009-03-21.
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Dasa, Lakshmi Narayana; Zhou, Hailong; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2009) Micro-photoluminescence study of single GaAsSb/GaAs radial and axial heterostructured core-shell nanowires. E-MRS 2009 . MRS; Strasbourg. 2009-06-08 - 2009-06-12.
• Vitenskapelig foredrag
  Anthonysamy, Fervin Moses; Hoang, Thang Ba; Dasa, Lakshmi Narayana; Zhou, Hailong; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2009) Optical properties of axial and radial heterostructured III-V semiconductor nanowires. 4th NTNU Nanolab User Meeting . NTNU Nanolab; Trondheim. 2009-05-13.
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Hoang, Thang Ba; Anthonysamy, Fervin Moses; Zhou, Hailong; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2009) Heterostructured III-V Nanowires with Mixed Crystal Phases: New Possibilities for Heterostructure Engineering. Nordic Semiconductor Meeting ; Reykjavik. 2009-06-14 - 2009-06-17.
• 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. 3rd International conf. on One-dimensional Nanomaterials . Georgia Tech., Atlanta; Atlanta. 2009-12-07 - 2009-12-09.
• Poster
  Dasa, Lakshmi Narayana; Rogstad, Espen; Scheffler, Martha; Van Helvoort, Antonius; Zhou, Hailong; Patriarche, G.; Harmand, J.C.; Fimland, Bjørn-Ove; Weman, Helge. (2009) Diffusion-limited growth of GaAs nanowires by Au-assisted molecular beam epitaxy. 4th GDR meeting ; Autrans. 2009-06-30 - 2009-07-03.
• Poster
  Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Anthonysamy, Fervin Moses; Zhou, Hailong; Hoang, Thang Ba; Fimland, Bjørn-Ove; Weman, Helge. (2009) Effect of growth-interruption on structural and optical properties of GaAs/GaAsSb axial heterostructured nanowires. Materials Res. Soc. 2009 Fall Meeting, Symposium M: Multifunction at the Nanoscale through Nanowires . Materials Research Society; Boston. 2009-11-29 - 2009-12-04.
• Poster
  Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Anthonysamy, Fervin Moses; Zhou, Hailong; Hoang, Thang Ba; Fimland, Bjørn-Ove; Weman, Helge. (2009) Optimization of heterointerfaces in axial heterostructured nanowires grown by molecular beam epitaxy. 4th Nanowire growth workshop . CNRS; Paris. 2009-10-26 - 2009-10-27.
• Vitenskapelig foredrag
  Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Zhou, Hailong; Anthonysamy, Fervin Moses; Hoang, Thang Ba; Rogstad, Espen; Scheffler, Martha; Fimland, Bjørn-Ove; Weman, Helge. (2009) Tailoring of semiconductor heterostructure nanowires for photonic applications by molecular beam epitaxy. 4th NTNU Nanolab User Meeting . NTNU Nanolab; Trondheim. 2009-05-13.
• Vitenskapelig foredrag
  Hoang, Thang Ba; Anthonysamy, Fervin Moses; Zhou, Hailong; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove; Weman, Helge. (2009) Crystal phase dependent photoluminescence polarization in single semiconductor nanowires. 3rd International conf. on One-dimensional Nanomaterials . Georgia Tech., Atlanta; Atlanta. 2009-12-07 - 2009-12-09.
• Vitenskapelig foredrag
  Hoang, Thang Ba; Anthonysamy, Fervin Moses; Zhou, Hailong; Dasa, Lakshmi Narayana; Van Helvoort, Antonius; Fimland, Bjørn-Ove;