Antonius Theodorus Johannes van Helvoort
About
Field of expertise
- Electron microscopy, especially transmission electron microscopy (TEM)
- Electron diffraction and spectroscopy (EELS and EDS)
- Advanced TEM data processing
- Focus ion beam (FIB)
- Nanotechnology and nanomaterials
- Solid state physics
- Semiconductor nanowires
Courses:
- TFY4330 Nanoverktøy
- TFY4255 Materials Physics
- TFY4330 Nanotools
- TFY14/FY3114 Functional Materials
- FY8102 Electron Microscopy and diffraction
- TFY4853 EIT_Nanoteknologi
Competencies
Publications
2017
-
Ahtapodov, Lyubomir;
Kauko, Hanne;
Munshi, Abdul Mazid;
Fimland, Bjørn-Ove;
Van Helvoort, Antonius;
Weman, Helge.
(2017)
Determination of GaAs zinc blende/wurtzite band offsets utilizing GaAs nanowires with an axial GaAsSb insert.
Journal of Applied Physics
Academic article
-
Mosberg, Aleksander Buseth;
Myklebost, Steinar;
Ren, Dingding;
Weman, Helge;
Fimland, Bjørn-Ove;
Van Helvoort, Antonius.
(2017)
Evaluating focused ion beam patterning for position-controlled nanowire growth using computer vision.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Liudi Mulyo, Andreas;
Konno, Yuta;
Nilsen, Julie Stene;
Van Helvoort, Antonius;
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
Academic article
2016
-
Fauske, Vidar Tonaas;
Erlbeck, Maximilian;
Huh, Junghwan;
KIM, DONG CHUL;
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj.
(2016)
In situ electronic probing of semiconducting nanowires in an electron microscope.
Journal of Microscopy
Academic article
-
Fauske, Vidar Tonaas;
Huh, Junghwan;
Divitini, Giorgio;
Dasa Lakshmi Narayana, Dheeraj;
Munshi, Abdul Mazid;
Ducati, Caterina.
(2016)
In situ heat-induced replacement of GaAs Nanowires with Au.
Nano Letters
Academic article
-
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
Academic article
-
Valluvar Oli, Arivazhagan;
Schmitz, F.D.;
Vullum, Per Erik;
Van Helvoort, Antonius;
Holst, Bodil.
(2016)
Atomic resolution imaging of beryl: an investigation of the nano-channel occupation.
Journal of Microscopy
Academic article
-
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
Academic article
-
Ahtapodov, Lyubomir;
Munshi, Abdul Mazid;
Nilsen, Julie Stene;
Reinertsen, Johannes F;
Dasa Lakshmi Narayana, Dheeraj;
Fimland, Bjørn-Ove.
(2016)
Effect of V/III ratio on the structural and optical properties of self-catalysed GaAs nanowires.
Nanotechnology
Academic article
2015
-
Huh, Junghwan;
Yun, H.;
KIM, DONG CHUL;
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj;
Kauko, Hanne.
(2015)
Rectifying Single GaAsSb Nanowire Devices Based on Self-Induced Compositional Gradients.
Nano Letters
Academic article
2014
-
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj;
Fauske, Vidar Tonaas;
KIM, DONG CHUL;
Huh, Junghwan;
Reinertsen, Johannes F.
(2014)
Position-Controlled Uniform GaAs Nanowires on Silicon using Nanoimprint Lithography.
Nano Letters
Academic article
-
Singh, Gurvinder;
Kumar, Puri Anil;
Lundgren, Christopher;
Van Helvoort, Antonius;
Mathieu, Roland;
Wahlström, Erik.
(2014)
Tunability in Crystallinity and Magnetic Properties of Core–Shell Fe Nanoparticles.
Particle & Particle Systems Characterization
Academic article
-
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
Academic article
-
Jones, Lewys;
MacArthur, K.E.;
Fauske, Vidar Tonaas;
Van Helvoort, Antonius;
Nellist, P.D..
(2014)
Rapid estimation of catalyst nanoparticle morphology and atomic-coordination by high-resolution Z-contrast electron microscopy.
Nano Letters
Academic article
-
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
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
Academic literature review
-
Todorovic, Jelena;
Kauko, Hanne;
Ahtapodov, Lyubomir;
Anthonysamy, Fervin Moses;
Olk, Phillip;
Dasa Lakshmi Narayana, Dheeraj.
(2013)
The effects of Sb concentration variation on the optical properties of GaAsSb/GaAs heterostructured nanowires.
Semiconductor Science and Technology
Academic article
-
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
Academic article
-
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj;
Todorovic, Jelena;
Van Helvoort, Antonius;
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
Academic article
-
Dasa Lakshmi Narayana, Dheeraj;
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
Academic article
2012
-
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj;
Fauske, Vidar Tonaas;
DONG CHUL, KIM;
Van Helvoort, Antonius;
Fimland, Bjørn-Ove.
(2012)
Vertically Aligned GaAs Nanowires on Graphite and Few-Layer Graphene: Generic Model and Epitaxial Growth.
Nano Letters
Academic article
-
Ahtapodov, Lyubomir;
Todorovic, Jelena;
Olk, Phillip;
Mjåland, Terje Sund;
Slåttnes, Patrick Rene Tollefsen;
Dasa Lakshmi Narayana, Dheeraj.
(2012)
A Story Told by a Single Nanowire: Optical Properties of Wurtzite GaAs.
Nano Letters
Academic article
2011
-
Eberg, Espen;
Van Helvoort, Antonius;
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
Academic article
-
Todorovic, Jelena;
Anthonysamy, Fervin Moses;
Karlberg, Thomas Andre;
Olk, Phillip;
Dasa Lakshmi Narayana, Dheeraj;
Fimland, Bjørn-Ove.
(2011)
Correlated micro-photoluminescence and electron microscopy studies of the same individual heterostructured semiconductor nanowires.
Nanotechnology
Academic article
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
Academic article
-
Hoang, Thang Ba;
Anthonysamy, Fervin Moses;
Ahtapodov, Lyubomir;
Zhou, Hailong;
Dasa, Lakshmi Narayana;
Van Helvoort, Antonius.
(2010)
Engineering Parallel and Perpendicular Polarized Photoluminescence from a Single Semiconductor Nanowire by Crystal Phase Control.
Nano Letters
Academic article
2009
-
Mumm, Florian;
Van Helvoort, Antonius;
Sikorski, Pawel .
(2009)
Easy Route to Superhydrophobic Copper-Based Wire-Guided Droplet Microfluidic Systems.
ACS Nano
Academic article
2008
-
Eberg, Espen;
Monsen, Åsmund Fløystad;
Tybell, Thomas;
Van Helvoort, Antonius;
Holmestad, Randi.
(2008)
Comparison of TEM specimen preparation of perovskite thin films by tripod polishing and conventional ion milling.
Journal of Electron Microscopy
Academic article
2007
-
Marioara, CD;
Andersen, Sigmund;
Stene, Tore;
Hasting, Håkon Stokka;
Walmsley, John C;
Van Helvoort, Antonius.
(2007)
The effect of Cu on precipitation in Al-Mg-Si alloys.
Philosophical Magazine
Academic article
-
Wang, Guozhong;
Sæterli, Ragnhild;
Rørvik, Per Martin;
Van Helvoort, Antonius;
Holmestad, Randi;
Grande, Tor.
(2007)
Self-assembled growth of PbTiO3 nanoparticles into microspheres and bur-like structures.
Chemistry of Materials
Academic article
2006
-
Knowles, Kevin;
Van Helvoort, Antonius.
(2006)
Anodic bonding.
International Materials Reviews
Academic literature review
2005
-
Van Helvoort, Antonius;
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
Academic article
Journal publications
-
Ahtapodov, Lyubomir;
Kauko, Hanne;
Munshi, Abdul Mazid;
Fimland, Bjørn-Ove;
Van Helvoort, Antonius;
Weman, Helge.
(2017)
Determination of GaAs zinc blende/wurtzite band offsets utilizing GaAs nanowires with an axial GaAsSb insert.
Journal of Applied Physics
Academic article
-
Mosberg, Aleksander Buseth;
Myklebost, Steinar;
Ren, Dingding;
Weman, Helge;
Fimland, Bjørn-Ove;
Van Helvoort, Antonius.
(2017)
Evaluating focused ion beam patterning for position-controlled nanowire growth using computer vision.
Journal of Physics: Conference Series (JPCS)
Academic article
-
Liudi Mulyo, Andreas;
Konno, Yuta;
Nilsen, Julie Stene;
Van Helvoort, Antonius;
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
Academic article
-
Fauske, Vidar Tonaas;
Erlbeck, Maximilian;
Huh, Junghwan;
KIM, DONG CHUL;
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj.
(2016)
In situ electronic probing of semiconducting nanowires in an electron microscope.
Journal of Microscopy
Academic article
-
Fauske, Vidar Tonaas;
Huh, Junghwan;
Divitini, Giorgio;
Dasa Lakshmi Narayana, Dheeraj;
Munshi, Abdul Mazid;
Ducati, Caterina.
(2016)
In situ heat-induced replacement of GaAs Nanowires with Au.
Nano Letters
Academic article
-
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
Academic article
-
Valluvar Oli, Arivazhagan;
Schmitz, F.D.;
Vullum, Per Erik;
Van Helvoort, Antonius;
Holst, Bodil.
(2016)
Atomic resolution imaging of beryl: an investigation of the nano-channel occupation.
Journal of Microscopy
Academic article
-
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
Academic article
-
Ahtapodov, Lyubomir;
Munshi, Abdul Mazid;
Nilsen, Julie Stene;
Reinertsen, Johannes F;
Dasa Lakshmi Narayana, Dheeraj;
Fimland, Bjørn-Ove.
(2016)
Effect of V/III ratio on the structural and optical properties of self-catalysed GaAs nanowires.
Nanotechnology
Academic article
-
Huh, Junghwan;
Yun, H.;
KIM, DONG CHUL;
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj;
Kauko, Hanne.
(2015)
Rectifying Single GaAsSb Nanowire Devices Based on Self-Induced Compositional Gradients.
Nano Letters
Academic article
-
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj;
Fauske, Vidar Tonaas;
KIM, DONG CHUL;
Huh, Junghwan;
Reinertsen, Johannes F.
(2014)
Position-Controlled Uniform GaAs Nanowires on Silicon using Nanoimprint Lithography.
Nano Letters
Academic article
-
Singh, Gurvinder;
Kumar, Puri Anil;
Lundgren, Christopher;
Van Helvoort, Antonius;
Mathieu, Roland;
Wahlström, Erik.
(2014)
Tunability in Crystallinity and Magnetic Properties of Core–Shell Fe Nanoparticles.
Particle & Particle Systems Characterization
Academic article
-
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
Academic article
-
Jones, Lewys;
MacArthur, K.E.;
Fauske, Vidar Tonaas;
Van Helvoort, Antonius;
Nellist, P.D..
(2014)
Rapid estimation of catalyst nanoparticle morphology and atomic-coordination by high-resolution Z-contrast electron microscopy.
Nano Letters
Academic article
-
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;
Grieb, Tim;
Bjørge, Ruben;
Schowalter, M.;
Munshi, Abdul Mazid;
Weman, Helge.
(2013)
Compositional characterization of GaAs/GaAsSb nanowires by quantitative HAADF-STEM.
Micron
Academic literature review
-
Todorovic, Jelena;
Kauko, Hanne;
Ahtapodov, Lyubomir;
Anthonysamy, Fervin Moses;
Olk, Phillip;
Dasa Lakshmi Narayana, Dheeraj.
(2013)
The effects of Sb concentration variation on the optical properties of GaAsSb/GaAs heterostructured nanowires.
Semiconductor Science and Technology
Academic article
-
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
Academic article
-
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj;
Todorovic, Jelena;
Van Helvoort, Antonius;
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
Academic article
-
Dasa Lakshmi Narayana, Dheeraj;
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
Academic article
-
Munshi, Abdul Mazid;
Dasa Lakshmi Narayana, Dheeraj;
Fauske, Vidar Tonaas;
DONG CHUL, KIM;
Van Helvoort, Antonius;
Fimland, Bjørn-Ove.
(2012)
Vertically Aligned GaAs Nanowires on Graphite and Few-Layer Graphene: Generic Model and Epitaxial Growth.
Nano Letters
Academic article
-
Ahtapodov, Lyubomir;
Todorovic, Jelena;
Olk, Phillip;
Mjåland, Terje Sund;
Slåttnes, Patrick Rene Tollefsen;
Dasa Lakshmi Narayana, Dheeraj.
(2012)
A Story Told by a Single Nanowire: Optical Properties of Wurtzite GaAs.
Nano Letters
Academic article
-
Eberg, Espen;
Van Helvoort, Antonius;
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
Academic article
-
Todorovic, Jelena;
Anthonysamy, Fervin Moses;
Karlberg, Thomas Andre;
Olk, Phillip;
Dasa Lakshmi Narayana, Dheeraj;
Fimland, Bjørn-Ove.
(2011)
Correlated micro-photoluminescence and electron microscopy studies of the same individual heterostructured semiconductor nanowires.
Nanotechnology
Academic article
-
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
Academic article
-
Hoang, Thang Ba;
Anthonysamy, Fervin Moses;
Ahtapodov, Lyubomir;
Zhou, Hailong;
Dasa, Lakshmi Narayana;
Van Helvoort, Antonius.
(2010)
Engineering Parallel and Perpendicular Polarized Photoluminescence from a Single Semiconductor Nanowire by Crystal Phase Control.
Nano Letters
Academic article
-
Mumm, Florian;
Van Helvoort, Antonius;
Sikorski, Pawel .
(2009)
Easy Route to Superhydrophobic Copper-Based Wire-Guided Droplet Microfluidic Systems.
ACS Nano
Academic article
-
Eberg, Espen;
Monsen, Åsmund Fløystad;
Tybell, Thomas;
Van Helvoort, Antonius;
Holmestad, Randi.
(2008)
Comparison of TEM specimen preparation of perovskite thin films by tripod polishing and conventional ion milling.
Journal of Electron Microscopy
Academic article
-
Marioara, CD;
Andersen, Sigmund;
Stene, Tore;
Hasting, Håkon Stokka;
Walmsley, John C;
Van Helvoort, Antonius.
(2007)
The effect of Cu on precipitation in Al-Mg-Si alloys.
Philosophical Magazine
Academic article
-
Wang, Guozhong;
Sæterli, Ragnhild;
Rørvik, Per Martin;
Van Helvoort, Antonius;
Holmestad, Randi;
Grande, Tor.
(2007)
Self-assembled growth of PbTiO3 nanoparticles into microspheres and bur-like structures.
Chemistry of Materials
Academic article
-
Knowles, Kevin;
Van Helvoort, Antonius.
(2006)
Anodic bonding.
International Materials Reviews
Academic literature review
-
Van Helvoort, Antonius;
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
Academic article