Cargando…

Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure

The catalytic effects of chromium (Cr) on the direct nitridation of silicon (Si) and morphology of nitridation product were investigated. Cr dramatically improved the conversation of Si to silicon nitride (Si(3)N(4)). The complete conversion was achieved at 1350 °C upon addition of 1.25 wt% Cr. This...

Descripción completa

Detalles Bibliográficos
Autores principales: Liang, Feng, Lu, Lilin, Tian, Liang, Li, Faliang, Zhang, Haijun, Zhang, Shaowei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4985709/
https://www.ncbi.nlm.nih.gov/pubmed/27527681
http://dx.doi.org/10.1038/srep31559
_version_ 1782448102742949888
author Liang, Feng
Lu, Lilin
Tian, Liang
Li, Faliang
Zhang, Haijun
Zhang, Shaowei
author_facet Liang, Feng
Lu, Lilin
Tian, Liang
Li, Faliang
Zhang, Haijun
Zhang, Shaowei
author_sort Liang, Feng
collection PubMed
description The catalytic effects of chromium (Cr) on the direct nitridation of silicon (Si) and morphology of nitridation product were investigated. Cr dramatically improved the conversation of Si to silicon nitride (Si(3)N(4)). The complete conversion was achieved at 1350 °C upon addition of 1.25 wt% Cr. This temperature was much lower than that required in the case without using a catalyst. Meanwhile, Cr played an important role in the in-situ growth of one-dimensional (1-D) α-Si(3)N(4) nanostructures. α-Si(3)N(4) nanowires and nanobelts became the primary product phases when 5 wt% Cr was used as the catalyst. The growth processes of the 1-D α-Si(3)N(4) nanostructures were governed by the vapor-solid mechanism. First-principle calculations suggest that electrons can be transferred from Cr atoms to N atoms, facilitating the Si nitridation.
format Online
Article
Text
id pubmed-4985709
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-49857092016-08-22 Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure Liang, Feng Lu, Lilin Tian, Liang Li, Faliang Zhang, Haijun Zhang, Shaowei Sci Rep Article The catalytic effects of chromium (Cr) on the direct nitridation of silicon (Si) and morphology of nitridation product were investigated. Cr dramatically improved the conversation of Si to silicon nitride (Si(3)N(4)). The complete conversion was achieved at 1350 °C upon addition of 1.25 wt% Cr. This temperature was much lower than that required in the case without using a catalyst. Meanwhile, Cr played an important role in the in-situ growth of one-dimensional (1-D) α-Si(3)N(4) nanostructures. α-Si(3)N(4) nanowires and nanobelts became the primary product phases when 5 wt% Cr was used as the catalyst. The growth processes of the 1-D α-Si(3)N(4) nanostructures were governed by the vapor-solid mechanism. First-principle calculations suggest that electrons can be transferred from Cr atoms to N atoms, facilitating the Si nitridation. Nature Publishing Group 2016-08-16 /pmc/articles/PMC4985709/ /pubmed/27527681 http://dx.doi.org/10.1038/srep31559 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Liang, Feng
Lu, Lilin
Tian, Liang
Li, Faliang
Zhang, Haijun
Zhang, Shaowei
Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure
title Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure
title_full Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure
title_fullStr Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure
title_full_unstemmed Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure
title_short Catalytic Effects of Cr on Nitridation of Silicon and Formation of One-dimensional Silicon Nitride Nanostructure
title_sort catalytic effects of cr on nitridation of silicon and formation of one-dimensional silicon nitride nanostructure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4985709/
https://www.ncbi.nlm.nih.gov/pubmed/27527681
http://dx.doi.org/10.1038/srep31559
work_keys_str_mv AT liangfeng catalyticeffectsofcronnitridationofsiliconandformationofonedimensionalsiliconnitridenanostructure
AT lulilin catalyticeffectsofcronnitridationofsiliconandformationofonedimensionalsiliconnitridenanostructure
AT tianliang catalyticeffectsofcronnitridationofsiliconandformationofonedimensionalsiliconnitridenanostructure
AT lifaliang catalyticeffectsofcronnitridationofsiliconandformationofonedimensionalsiliconnitridenanostructure
AT zhanghaijun catalyticeffectsofcronnitridationofsiliconandformationofonedimensionalsiliconnitridenanostructure
AT zhangshaowei catalyticeffectsofcronnitridationofsiliconandformationofonedimensionalsiliconnitridenanostructure