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  1. Ansatte

Språkvelger

English

Antonius Theodorus Johannes van Helvoort

Last ned pressefoto
Last ned pressefoto
Foto:

Antonius Theodorus Johannes van Helvoort

Professor
Institutt for fysikk

a.helvoort@ntnu.no
73593637 90403716 Realfagbygget, B4-121, Gløshaugen, Høgskoleringen 5
folk.ntnu.no/helvoort
Om Publikasjoner Undervisning

Om

CV

Fagfelt/arbeidsområde

  • Elektronenmikroskopi, spesielt transmisjonseleketronenmikroskopi (TEM)
  • Elektrondiffraksjon
  • Avansert TEM dataprosessering
  • Fokusert ion strål (FIB)
  • Analytisk elektronmikroskopi: EDS og EELS

 

  • Faststofffysikk generelt
  • Nanoteknologi og nanomaterialer
  • Halvleder nanowires
  •  

Kurs:

  • TFY4255 Materialfysikk
  • TFY4330 Nanovertøy
  • FY8102 Elektronmikroskopi og diffraksjon

Kompetanseord

  • Elektronmikroskopi

Publikasjoner

  • Kronologisk
  • Etter kategori
  • Alle publikasjoner i Nasjonalt vitenarkiv (NVA)

2017

  • Mulyo, Andreas Liudi; Konno, Yuta; Nilsen, Julie Stene; Helvoort, Antonius Van; Fimland, Bjørn-Ove; Weman, Helge. (2017) Growth study of self-assembled GaN nanocolumns on silica glass by plasma assisted molecular beam epitaxy. Journal of Crystal Growth
    Vitenskapelig artikkel
  • Mosberg, Aleksander Buseth; Myklebost, Steinar; Ren, Dingding; Weman, Helge; Fimland, Bjørn-Ove; Helvoort, Antonius Van. (2017) Evaluating focused ion beam patterning for position-controlled nanowire growth using computer vision. Journal of Physics: Conference Series (JPCS)
    Vitenskapelig artikkel
  • Ahtapodov, Lyubomir; Kauko, Hanne; Munshi, Abdul Mazid; Fimland, Bjørn-Ove; Helvoort, Antonius Van; Weman, Helge. (2017) Determination of GaAs zinc blende/wurtzite band offsets utilizing GaAs nanowires with an axial GaAsSb insert. Journal of Applied Physics
    Vitenskapelig artikkel

2016

  • Ren, Dingding; Dheeraj, D.L.; Jin, Chengjun; Nilsen, Julie Stene; Huh, Junghwan; Reinertsen, Johannes F. (2016) New Insights into the Origins of Sb-Induced Effects on Self-Catalyzed GaAsSb Nanowire Arrays. Nano Letters
    Vitenskapelig artikkel
  • Heilmann, Martin; Munshi, Abdul Mazid; Sarau, George; Göbelt, Manuela; Tessarek, Christian; Fauske, Vidar Tonaas. (2016) Vertically Oriented Growth of GaN Nanorods on Si Using Graphene as an Atomically Thin Buffer Layer. Nano Letters
    Vitenskapelig artikkel
  • Fauske, Vidar Tonaas; Huh, Junghwan; Divitini, Giorgio; Narayana, Dheeraj Dasa Lakshmi; Munshi, Abdul Mazid; Ducati, Caterina. (2016) In situ heat-induced replacement of GaAs Nanowires with Au. Nano Letters
    Vitenskapelig artikkel
  • Ahtapodov, Lyubomir; Munshi, Abdul Mazid; Nilsen, Julie Stene; Reinertsen, Johannes F; Narayana, Dheeraj Dasa Lakshmi; Fimland, Bjørn-Ove. (2016) Effect of V/III ratio on the structural and optical properties of self-catalysed GaAs nanowires. Nanotechnology
    Vitenskapelig artikkel
  • Oli, Arivazhagan Valluvar; Schmitz, F.D.; Vullum, Per Erik; Helvoort, Antonius Van; Holst, Bodil. (2016) Atomic resolution imaging of beryl: an investigation of the nano-channel occupation. Journal of Microscopy
    Vitenskapelig artikkel
  • Fauske, Vidar Tonaas; Erlbeck, Maximilian; Huh, Junghwan; KIM, DONG CHUL; Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi. (2016) In situ electronic probing of semiconducting nanowires in an electron microscope. Journal of Microscopy
    Vitenskapelig artikkel

2015

  • Huh, Junghwan; Yun, H.; KIM, DONG CHUL; Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi; Kauko, Hanne. (2015) Rectifying Single GaAsSb Nanowire Devices Based on Self-Induced Compositional Gradients. Nano Letters
    Vitenskapelig artikkel

2014

  • Singh, Gurvinder; Kumar, Puri Anil; Lundgren, Christopher; Helvoort, Antonius Van; Mathieu, Roland; Wahlström, Erik. (2014) Tunability in Crystallinity and Magnetic Properties of Core–Shell Fe Nanoparticles. Particle & Particle Systems Characterization
    Vitenskapelig artikkel
  • Kauko, Hanne; Fimland, Bjørn-Ove; Grieb, Tim; Munshi, Abdul Mazid; Muller, K.; Rosenauer, A.. (2014) Erratum: Near-surface depletion of antimony during the growth of GaAsSb and GaAs/GaAsSb nanowires (Journal of Applied Physics (2014)116 (144303)). Journal of Applied Physics
    Errata
  • Kauko, Hanne; Fimland, Bjørn-Ove; Grieb, Tim; Munshi, Abdul Mazid; Müller, Knut; Rosenauer, Andreas. (2014) Near-surface depletion of antimony during the growth of GaAsSb and GaAs/GaAsSb nanowires. Journal of Applied Physics
    Vitenskapelig artikkel
  • Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi; Fauske, Vidar Tonaas; KIM, DONG CHUL; Huh, Junghwan; Reinertsen, Johannes F. (2014) Position-Controlled Uniform GaAs Nanowires on Silicon using Nanoimprint Lithography. Nano Letters
    Vitenskapelig artikkel
  • Jones, Lewys; MacArthur, K.E.; Fauske, Vidar Tonaas; Helvoort, Antonius Van; Nellist, P.D.. (2014) Rapid estimation of catalyst nanoparticle morphology and atomic-coordination by high-resolution Z-contrast electron microscopy. Nano Letters
    Vitenskapelig artikkel

2013

  • Kauko, Hanne; Grieb, Tim; Bjørge, Ruben; Schowalter, M.; Munshi, Abdul Mazid; Weman, Helge. (2013) Compositional characterization of GaAs/GaAsSb nanowires by quantitative HAADF-STEM. Micron
    Vitenskapelig oversiktsartikkel/review
  • Todorovic, Jelena; Kauko, Hanne; Ahtapodov, Lyubomir; Anthonysamy, Fervin Moses; Olk, Phillip; Narayana, Dheeraj Dasa Lakshmi. (2013) The effects of Sb concentration variation on the optical properties of GaAsSb/GaAs heterostructured nanowires. Semiconductor Science and Technology
    Vitenskapelig artikkel
  • Kauko, Hanne; Zheng, C.L; Zhu, Y; Glanvill, S; Dwyer, Christian; Munshi, Abdul Mazid. (2013) Compositional analysis of GaAs/AlGaAs heterostructures using quantitative scanning transmission electron microscopy. Applied Physics Letters
    Vitenskapelig artikkel
  • Narayana, Dheeraj Dasa Lakshmi; Munshi, Abdul Mazid; Christoffersen, Ole Morten; KIM, DONG CHUL; Signorello, Giovanni; Riel, H. (2013) Comparison of Be-doped GaAs nanowires grown by Au- and Ga-assisted molecular beam epitaxy. Journal of Crystal Growth
    Vitenskapelig artikkel
  • Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi; Todorovic, Jelena; Helvoort, Antonius Van; Weman, Helge; Fimland, Bjørn-Ove. (2013) Crystal phase engineering in self-catalyzed GaAs and GaAs/GaAsSb nanowires grown on Si(111). Journal of Crystal Growth
    Vitenskapelig artikkel

2012

  • Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi; Fauske, Vidar Tonaas; CHUL, KIM DONG; Helvoort, Antonius Van; Fimland, Bjørn-Ove. (2012) Vertically Aligned GaAs Nanowires on Graphite and Few-Layer Graphene: Generic Model and Epitaxial Growth. Nano Letters
    Vitenskapelig artikkel
  • Ahtapodov, Lyubomir; Todorovic, Jelena; Olk, Phillip; Mjåland, Terje Sund; Slåttnes, Patrick Rene Tollefsen; Narayana, Dheeraj Dasa Lakshmi. (2012) A Story Told by a Single Nanowire: Optical Properties of Wurtzite GaAs. Nano Letters
    Vitenskapelig artikkel

2011

  • Todorovic, Jelena; Anthonysamy, Fervin Moses; Karlberg, Thomas Andre; Olk, Phillip; Narayana, Dheeraj Dasa Lakshmi; Fimland, Bjørn-Ove. (2011) Correlated micro-photoluminescence and electron microscopy studies of the same individual heterostructured semiconductor nanowires. Nanotechnology
    Vitenskapelig artikkel
  • Eberg, Espen; Helvoort, Antonius Van; Takahashi, Ryota; Gass, Mhairi; Mendis, Budhika; Bleloch, Andrew. (2011) Electron energy loss spectroscopy investigation of Pb and Ti hybridization with O at the PbTiO3/SrTiO3 interface. Journal of Applied Physics
    Vitenskapelig artikkel

2010

  • Sæterli, Ragnhild; Rørvik, Per Martin Ljønes; You, Chang Chuan; Holmestad, Randi; Tybell, Thomas; Grande, Tor. (2010) Polarization control in ferroelectric PbTiO3 nanorods. Journal of Applied Physics
    Vitenskapelig artikkel
  • Hoang, Thang Ba; Anthonysamy, Fervin Moses; Ahtapodov, Lyubomir; Zhou, Hailong; Dasa, Lakshmi Narayana; Helvoort, Antonius Van. (2010) Engineering Parallel and Perpendicular Polarized Photoluminescence from a Single Semiconductor Nanowire by Crystal Phase Control. Nano Letters
    Vitenskapelig artikkel

2009

  • Mumm, Florian; Helvoort, Antonius Van; Sikorski, Pawel. (2009) Easy Route to Superhydrophobic Copper-Based Wire-Guided Droplet Microfluidic Systems. ACS Nano
    Vitenskapelig artikkel

2008

  • Eberg, Espen; Monsen, Åsmund Fløystad; Tybell, Thomas; Helvoort, Antonius Van; Holmestad, Randi. (2008) Comparison of TEM specimen preparation of perovskite thin films by tripod polishing and conventional ion milling. Journal of Electron Microscopy
    Vitenskapelig artikkel

2007

  • Marioara, CD; Andersen, Sigmund; Stene, Tore; Hasting, Håkon Stokka; Walmsley, John C; Helvoort, Antonius Van. (2007) The effect of Cu on precipitation in Al-Mg-Si alloys. Philosophical Magazine
    Vitenskapelig artikkel
  • Wang, Guozhong; Sæterli, Ragnhild; Rørvik, Per Martin; Helvoort, Antonius Van; Holmestad, Randi; Grande, Tor. (2007) Self-assembled growth of PbTiO3 nanoparticles into microspheres and bur-like structures. Chemistry of Materials
    Vitenskapelig artikkel

2006

  • Knowles, Kevin; Helvoort, Antonius Van. (2006) Anodic bonding. International Materials Reviews
    Vitenskapelig oversiktsartikkel/review

2005

  • Helvoort, Antonius Van; Dahl, Øystein; Soleim, Bjørn Gunnar; Holmestad, Randi; Tybell, Thomas. (2005) Imaging of out-of-plane interfacial strain in epitaxial PbTiO3/SrTiO3 thin films. Applied Physics Letters
    Vitenskapelig artikkel

Tidsskriftspublikasjoner

  • Mulyo, Andreas Liudi; Konno, Yuta; Nilsen, Julie Stene; Helvoort, Antonius Van; Fimland, Bjørn-Ove; Weman, Helge. (2017) Growth study of self-assembled GaN nanocolumns on silica glass by plasma assisted molecular beam epitaxy. Journal of Crystal Growth
    Vitenskapelig artikkel
  • Mosberg, Aleksander Buseth; Myklebost, Steinar; Ren, Dingding; Weman, Helge; Fimland, Bjørn-Ove; Helvoort, Antonius Van. (2017) Evaluating focused ion beam patterning for position-controlled nanowire growth using computer vision. Journal of Physics: Conference Series (JPCS)
    Vitenskapelig artikkel
  • Ahtapodov, Lyubomir; Kauko, Hanne; Munshi, Abdul Mazid; Fimland, Bjørn-Ove; Helvoort, Antonius Van; Weman, Helge. (2017) Determination of GaAs zinc blende/wurtzite band offsets utilizing GaAs nanowires with an axial GaAsSb insert. Journal of Applied Physics
    Vitenskapelig artikkel
  • Ren, Dingding; Dheeraj, D.L.; Jin, Chengjun; Nilsen, Julie Stene; Huh, Junghwan; Reinertsen, Johannes F. (2016) New Insights into the Origins of Sb-Induced Effects on Self-Catalyzed GaAsSb Nanowire Arrays. Nano Letters
    Vitenskapelig artikkel
  • Heilmann, Martin; Munshi, Abdul Mazid; Sarau, George; Göbelt, Manuela; Tessarek, Christian; Fauske, Vidar Tonaas. (2016) Vertically Oriented Growth of GaN Nanorods on Si Using Graphene as an Atomically Thin Buffer Layer. Nano Letters
    Vitenskapelig artikkel
  • Fauske, Vidar Tonaas; Huh, Junghwan; Divitini, Giorgio; Narayana, Dheeraj Dasa Lakshmi; Munshi, Abdul Mazid; Ducati, Caterina. (2016) In situ heat-induced replacement of GaAs Nanowires with Au. Nano Letters
    Vitenskapelig artikkel
  • Ahtapodov, Lyubomir; Munshi, Abdul Mazid; Nilsen, Julie Stene; Reinertsen, Johannes F; Narayana, Dheeraj Dasa Lakshmi; Fimland, Bjørn-Ove. (2016) Effect of V/III ratio on the structural and optical properties of self-catalysed GaAs nanowires. Nanotechnology
    Vitenskapelig artikkel
  • Oli, Arivazhagan Valluvar; Schmitz, F.D.; Vullum, Per Erik; Helvoort, Antonius Van; Holst, Bodil. (2016) Atomic resolution imaging of beryl: an investigation of the nano-channel occupation. Journal of Microscopy
    Vitenskapelig artikkel
  • Fauske, Vidar Tonaas; Erlbeck, Maximilian; Huh, Junghwan; KIM, DONG CHUL; Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi. (2016) In situ electronic probing of semiconducting nanowires in an electron microscope. Journal of Microscopy
    Vitenskapelig artikkel
  • Huh, Junghwan; Yun, H.; KIM, DONG CHUL; Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi; Kauko, Hanne. (2015) Rectifying Single GaAsSb Nanowire Devices Based on Self-Induced Compositional Gradients. Nano Letters
    Vitenskapelig artikkel
  • Singh, Gurvinder; Kumar, Puri Anil; Lundgren, Christopher; Helvoort, Antonius Van; Mathieu, Roland; Wahlström, Erik. (2014) Tunability in Crystallinity and Magnetic Properties of Core–Shell Fe Nanoparticles. Particle & Particle Systems Characterization
    Vitenskapelig artikkel
  • Kauko, Hanne; Fimland, Bjørn-Ove; Grieb, Tim; Munshi, Abdul Mazid; Muller, K.; Rosenauer, A.. (2014) Erratum: Near-surface depletion of antimony during the growth of GaAsSb and GaAs/GaAsSb nanowires (Journal of Applied Physics (2014)116 (144303)). Journal of Applied Physics
    Errata
  • Kauko, Hanne; Fimland, Bjørn-Ove; Grieb, Tim; Munshi, Abdul Mazid; Müller, Knut; Rosenauer, Andreas. (2014) Near-surface depletion of antimony during the growth of GaAsSb and GaAs/GaAsSb nanowires. Journal of Applied Physics
    Vitenskapelig artikkel
  • Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi; Fauske, Vidar Tonaas; KIM, DONG CHUL; Huh, Junghwan; Reinertsen, Johannes F. (2014) Position-Controlled Uniform GaAs Nanowires on Silicon using Nanoimprint Lithography. Nano Letters
    Vitenskapelig artikkel
  • Jones, Lewys; MacArthur, K.E.; Fauske, Vidar Tonaas; Helvoort, Antonius Van; Nellist, P.D.. (2014) Rapid estimation of catalyst nanoparticle morphology and atomic-coordination by high-resolution Z-contrast electron microscopy. Nano Letters
    Vitenskapelig artikkel
  • Kauko, Hanne; Grieb, Tim; Bjørge, Ruben; Schowalter, M.; Munshi, Abdul Mazid; Weman, Helge. (2013) Compositional characterization of GaAs/GaAsSb nanowires by quantitative HAADF-STEM. Micron
    Vitenskapelig oversiktsartikkel/review
  • Todorovic, Jelena; Kauko, Hanne; Ahtapodov, Lyubomir; Anthonysamy, Fervin Moses; Olk, Phillip; Narayana, Dheeraj Dasa Lakshmi. (2013) The effects of Sb concentration variation on the optical properties of GaAsSb/GaAs heterostructured nanowires. Semiconductor Science and Technology
    Vitenskapelig artikkel
  • Kauko, Hanne; Zheng, C.L; Zhu, Y; Glanvill, S; Dwyer, Christian; Munshi, Abdul Mazid. (2013) Compositional analysis of GaAs/AlGaAs heterostructures using quantitative scanning transmission electron microscopy. Applied Physics Letters
    Vitenskapelig artikkel
  • Narayana, Dheeraj Dasa Lakshmi; Munshi, Abdul Mazid; Christoffersen, Ole Morten; KIM, DONG CHUL; Signorello, Giovanni; Riel, H. (2013) Comparison of Be-doped GaAs nanowires grown by Au- and Ga-assisted molecular beam epitaxy. Journal of Crystal Growth
    Vitenskapelig artikkel
  • Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi; Todorovic, Jelena; Helvoort, Antonius Van; Weman, Helge; Fimland, Bjørn-Ove. (2013) Crystal phase engineering in self-catalyzed GaAs and GaAs/GaAsSb nanowires grown on Si(111). Journal of Crystal Growth
    Vitenskapelig artikkel
  • Munshi, Abdul Mazid; Narayana, Dheeraj Dasa Lakshmi; Fauske, Vidar Tonaas; CHUL, KIM DONG; Helvoort, Antonius Van; Fimland, Bjørn-Ove. (2012) Vertically Aligned GaAs Nanowires on Graphite and Few-Layer Graphene: Generic Model and Epitaxial Growth. Nano Letters
    Vitenskapelig artikkel
  • Ahtapodov, Lyubomir; Todorovic, Jelena; Olk, Phillip; Mjåland, Terje Sund; Slåttnes, Patrick Rene Tollefsen; Narayana, Dheeraj Dasa Lakshmi. (2012) A Story Told by a Single Nanowire: Optical Properties of Wurtzite GaAs. Nano Letters
    Vitenskapelig artikkel
  • Todorovic, Jelena; Anthonysamy, Fervin Moses; Karlberg, Thomas Andre; Olk, Phillip; Narayana, Dheeraj Dasa Lakshmi; Fimland, Bjørn-Ove. (2011) Correlated micro-photoluminescence and electron microscopy studies of the same individual heterostructured semiconductor nanowires. Nanotechnology
    Vitenskapelig artikkel
  • Eberg, Espen; Helvoort, Antonius Van; Takahashi, Ryota; Gass, Mhairi; Mendis, Budhika; Bleloch, Andrew. (2011) Electron energy loss spectroscopy investigation of Pb and Ti hybridization with O at the PbTiO3/SrTiO3 interface. Journal of Applied Physics
    Vitenskapelig artikkel
  • Sæterli, Ragnhild; Rørvik, Per Martin Ljønes; You, Chang Chuan; Holmestad, Randi; Tybell, Thomas; Grande, Tor. (2010) Polarization control in ferroelectric PbTiO3 nanorods. Journal of Applied Physics
    Vitenskapelig artikkel
  • Hoang, Thang Ba; Anthonysamy, Fervin Moses; Ahtapodov, Lyubomir; Zhou, Hailong; Dasa, Lakshmi Narayana; Helvoort, Antonius Van. (2010) Engineering Parallel and Perpendicular Polarized Photoluminescence from a Single Semiconductor Nanowire by Crystal Phase Control. Nano Letters
    Vitenskapelig artikkel
  • Mumm, Florian; Helvoort, Antonius Van; Sikorski, Pawel. (2009) Easy Route to Superhydrophobic Copper-Based Wire-Guided Droplet Microfluidic Systems. ACS Nano
    Vitenskapelig artikkel
  • Eberg, Espen; Monsen, Åsmund Fløystad; Tybell, Thomas; Helvoort, Antonius Van; Holmestad, Randi. (2008) Comparison of TEM specimen preparation of perovskite thin films by tripod polishing and conventional ion milling. Journal of Electron Microscopy
    Vitenskapelig artikkel
  • Marioara, CD; Andersen, Sigmund; Stene, Tore; Hasting, Håkon Stokka; Walmsley, John C; Helvoort, Antonius Van. (2007) The effect of Cu on precipitation in Al-Mg-Si alloys. Philosophical Magazine
    Vitenskapelig artikkel
  • Wang, Guozhong; Sæterli, Ragnhild; Rørvik, Per Martin; Helvoort, Antonius Van; Holmestad, Randi; Grande, Tor. (2007) Self-assembled growth of PbTiO3 nanoparticles into microspheres and bur-like structures. Chemistry of Materials
    Vitenskapelig artikkel
  • Knowles, Kevin; Helvoort, Antonius Van. (2006) Anodic bonding. International Materials Reviews
    Vitenskapelig oversiktsartikkel/review
  • Helvoort, Antonius Van; Dahl, Øystein; Soleim, Bjørn Gunnar; Holmestad, Randi; Tybell, Thomas. (2005) Imaging of out-of-plane interfacial strain in epitaxial PbTiO3/SrTiO3 thin films. Applied Physics Letters
    Vitenskapelig artikkel

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  • FY3114 - Funksjonelle materialer
  • FY8912 - Funksjonelle materialer
  • FY8102 - Elektronmikroskopi og diffraksjon

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