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Theoretical predictions on the electronic structure and charge carrier mobility in 2D Phosphorus sheets
We have investigated the electronic structure and carrier mobility of four types of phosphorous monolayer sheet (α-P, β-P,γ-P and δ-P) using density functional theory combined with Boltzmann transport method and relaxation time approximation. It is shown that α-P, β-P and γ-P are indirect gap semico...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4451805/ https://www.ncbi.nlm.nih.gov/pubmed/26035176 http://dx.doi.org/10.1038/srep09961 |
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author | Xiao, Jin Long, Mengqiu Zhang, Xiaojiao Ouyang, Jun Xu, Hui Gao, Yongli |
author_facet | Xiao, Jin Long, Mengqiu Zhang, Xiaojiao Ouyang, Jun Xu, Hui Gao, Yongli |
author_sort | Xiao, Jin |
collection | PubMed |
description | We have investigated the electronic structure and carrier mobility of four types of phosphorous monolayer sheet (α-P, β-P,γ-P and δ-P) using density functional theory combined with Boltzmann transport method and relaxation time approximation. It is shown that α-P, β-P and γ-P are indirect gap semiconductors, while δ-P is a direct one. All four sheets have ultrahigh carrier mobility and show anisotropy in-plane. The highest mobility value is ~3 × 10(5) cm(2)V(−1)s(−1), which is comparable to that of graphene. Because of the huge difference between the hole and electron mobilities, α-P, γ-P and δ-P sheets can be considered as n-type semiconductors, and β-P sheet can be considered as a p-type semiconductor. Our results suggest that phosphorous monolayer sheets can be considered as a new type of two dimensional materials for applications in optoelectronics and nanoelectronic devices. |
format | Online Article Text |
id | pubmed-4451805 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44518052015-06-09 Theoretical predictions on the electronic structure and charge carrier mobility in 2D Phosphorus sheets Xiao, Jin Long, Mengqiu Zhang, Xiaojiao Ouyang, Jun Xu, Hui Gao, Yongli Sci Rep Article We have investigated the electronic structure and carrier mobility of four types of phosphorous monolayer sheet (α-P, β-P,γ-P and δ-P) using density functional theory combined with Boltzmann transport method and relaxation time approximation. It is shown that α-P, β-P and γ-P are indirect gap semiconductors, while δ-P is a direct one. All four sheets have ultrahigh carrier mobility and show anisotropy in-plane. The highest mobility value is ~3 × 10(5) cm(2)V(−1)s(−1), which is comparable to that of graphene. Because of the huge difference between the hole and electron mobilities, α-P, γ-P and δ-P sheets can be considered as n-type semiconductors, and β-P sheet can be considered as a p-type semiconductor. Our results suggest that phosphorous monolayer sheets can be considered as a new type of two dimensional materials for applications in optoelectronics and nanoelectronic devices. Nature Publishing Group 2015-06-02 /pmc/articles/PMC4451805/ /pubmed/26035176 http://dx.doi.org/10.1038/srep09961 Text en Copyright © 2015, Macmillan Publishers Limited 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 Xiao, Jin Long, Mengqiu Zhang, Xiaojiao Ouyang, Jun Xu, Hui Gao, Yongli Theoretical predictions on the electronic structure and charge carrier mobility in 2D Phosphorus sheets |
title | Theoretical predictions on the electronic structure and charge carrier mobility in 2D Phosphorus sheets |
title_full | Theoretical predictions on the electronic structure and charge carrier mobility in 2D Phosphorus sheets |
title_fullStr | Theoretical predictions on the electronic structure and charge carrier mobility in 2D Phosphorus sheets |
title_full_unstemmed | Theoretical predictions on the electronic structure and charge carrier mobility in 2D Phosphorus sheets |
title_short | Theoretical predictions on the electronic structure and charge carrier mobility in 2D Phosphorus sheets |
title_sort | theoretical predictions on the electronic structure and charge carrier mobility in 2d phosphorus sheets |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4451805/ https://www.ncbi.nlm.nih.gov/pubmed/26035176 http://dx.doi.org/10.1038/srep09961 |
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