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Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition
Hydrogen flow during low pressure chemical vapor deposition had significant effect not only on the physical properties but also on the electrical properties of graphene. Nucleation and grain growth of graphene increased at higher hydrogen flows. And, more oxygen-related functional groups like amorph...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4201742/ https://www.ncbi.nlm.nih.gov/pubmed/25332692 http://dx.doi.org/10.1186/1556-276X-9-546 |
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author | Hussain, Sajjad Iqbal, Muhmmad Waqas Park, Jaehyun Ahmad, Muneer Singh, Jai Eom, Jonghwa Jung, Jongwan |
author_facet | Hussain, Sajjad Iqbal, Muhmmad Waqas Park, Jaehyun Ahmad, Muneer Singh, Jai Eom, Jonghwa Jung, Jongwan |
author_sort | Hussain, Sajjad |
collection | PubMed |
description | Hydrogen flow during low pressure chemical vapor deposition had significant effect not only on the physical properties but also on the electrical properties of graphene. Nucleation and grain growth of graphene increased at higher hydrogen flows. And, more oxygen-related functional groups like amorphous and oxidized carbon that probably contributed to defects or contamination of graphene remained on the graphene surface at low H(2) flow conditions. It is believed that at low hydrogen flow, those remained oxygen or other oxidizing impurities make the graphene films p-doped and result in decreasing the carrier mobility. |
format | Online Article Text |
id | pubmed-4201742 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Springer |
record_format | MEDLINE/PubMed |
spelling | pubmed-42017422014-10-20 Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition Hussain, Sajjad Iqbal, Muhmmad Waqas Park, Jaehyun Ahmad, Muneer Singh, Jai Eom, Jonghwa Jung, Jongwan Nanoscale Res Lett Nano Express Hydrogen flow during low pressure chemical vapor deposition had significant effect not only on the physical properties but also on the electrical properties of graphene. Nucleation and grain growth of graphene increased at higher hydrogen flows. And, more oxygen-related functional groups like amorphous and oxidized carbon that probably contributed to defects or contamination of graphene remained on the graphene surface at low H(2) flow conditions. It is believed that at low hydrogen flow, those remained oxygen or other oxidizing impurities make the graphene films p-doped and result in decreasing the carrier mobility. Springer 2014-10-02 /pmc/articles/PMC4201742/ /pubmed/25332692 http://dx.doi.org/10.1186/1556-276X-9-546 Text en Copyright © 2014 Hussain et al.; licensee Springer. http://creativecommons.org/licenses/by/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
spellingShingle | Nano Express Hussain, Sajjad Iqbal, Muhmmad Waqas Park, Jaehyun Ahmad, Muneer Singh, Jai Eom, Jonghwa Jung, Jongwan Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition |
title | Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition |
title_full | Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition |
title_fullStr | Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition |
title_full_unstemmed | Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition |
title_short | Physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition |
title_sort | physical and electrical properties of graphene grown under different hydrogen flow in low pressure chemical vapor deposition |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4201742/ https://www.ncbi.nlm.nih.gov/pubmed/25332692 http://dx.doi.org/10.1186/1556-276X-9-546 |
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