Influence of the Electron Beam and the Choice of Heating Membrane on the Evolution of Si Nanowires’ Morphology in In Situ TEM

We used in situ transmission electron microscopy (TEM) to observe the dynamic changes of Si nanowires under electron beam irradiation. We found evidence of structural evolutions under TEM observation due to a combination of electron beam and thermal effects. Two types of heating holders were used: a...

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Autores principales: Shen, Ya, Zhao, Xuechun, Gong, Ruiling, Ngo, Eric, Maurice, Jean-Luc, Roca i Cabarrocas, Pere, Chen, Wanghua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369465/
https://www.ncbi.nlm.nih.gov/pubmed/35955179
http://dx.doi.org/10.3390/ma15155244
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author Shen, Ya
Zhao, Xuechun
Gong, Ruiling
Ngo, Eric
Maurice, Jean-Luc
Roca i Cabarrocas, Pere
Chen, Wanghua
author_facet Shen, Ya
Zhao, Xuechun
Gong, Ruiling
Ngo, Eric
Maurice, Jean-Luc
Roca i Cabarrocas, Pere
Chen, Wanghua
author_sort Shen, Ya
collection PubMed
description We used in situ transmission electron microscopy (TEM) to observe the dynamic changes of Si nanowires under electron beam irradiation. We found evidence of structural evolutions under TEM observation due to a combination of electron beam and thermal effects. Two types of heating holders were used: a carbon membrane, and a silicon nitride membrane. Different evolution of Si nanowires on these membranes was observed. Regarding the heating of Si nanowires on a C membrane at 800 °C and above, a serious degradation dependent on the diameter of the Si nanowire was observed under the electron beam, with the formation of Si carbide. When the membrane was changed to Si nitride, a reversible sectioning and welding of the Si nanowire was observed.
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spelling pubmed-93694652022-08-12 Influence of the Electron Beam and the Choice of Heating Membrane on the Evolution of Si Nanowires’ Morphology in In Situ TEM Shen, Ya Zhao, Xuechun Gong, Ruiling Ngo, Eric Maurice, Jean-Luc Roca i Cabarrocas, Pere Chen, Wanghua Materials (Basel) Article We used in situ transmission electron microscopy (TEM) to observe the dynamic changes of Si nanowires under electron beam irradiation. We found evidence of structural evolutions under TEM observation due to a combination of electron beam and thermal effects. Two types of heating holders were used: a carbon membrane, and a silicon nitride membrane. Different evolution of Si nanowires on these membranes was observed. Regarding the heating of Si nanowires on a C membrane at 800 °C and above, a serious degradation dependent on the diameter of the Si nanowire was observed under the electron beam, with the formation of Si carbide. When the membrane was changed to Si nitride, a reversible sectioning and welding of the Si nanowire was observed. MDPI 2022-07-29 /pmc/articles/PMC9369465/ /pubmed/35955179 http://dx.doi.org/10.3390/ma15155244 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Shen, Ya
Zhao, Xuechun
Gong, Ruiling
Ngo, Eric
Maurice, Jean-Luc
Roca i Cabarrocas, Pere
Chen, Wanghua
Influence of the Electron Beam and the Choice of Heating Membrane on the Evolution of Si Nanowires’ Morphology in In Situ TEM
title Influence of the Electron Beam and the Choice of Heating Membrane on the Evolution of Si Nanowires’ Morphology in In Situ TEM
title_full Influence of the Electron Beam and the Choice of Heating Membrane on the Evolution of Si Nanowires’ Morphology in In Situ TEM
title_fullStr Influence of the Electron Beam and the Choice of Heating Membrane on the Evolution of Si Nanowires’ Morphology in In Situ TEM
title_full_unstemmed Influence of the Electron Beam and the Choice of Heating Membrane on the Evolution of Si Nanowires’ Morphology in In Situ TEM
title_short Influence of the Electron Beam and the Choice of Heating Membrane on the Evolution of Si Nanowires’ Morphology in In Situ TEM
title_sort influence of the electron beam and the choice of heating membrane on the evolution of si nanowires’ morphology in in situ tem
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369465/
https://www.ncbi.nlm.nih.gov/pubmed/35955179
http://dx.doi.org/10.3390/ma15155244
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