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Ultrawide range tuning of direct band gap in MgZnO monolayer via electric field effect
Two-dimensional (2D) materials are building blocks for the next generation of electronic and optoelectronic devices. Tuning band gap in 2D materials over a broad range from ultraviolet to infrared is of scientific and technological importance for a wide range of applications, but its execution remai...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077054/ https://www.ncbi.nlm.nih.gov/pubmed/35540890 http://dx.doi.org/10.1039/c7ra11766c |
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author | Chen, Hongfei Tan, Changlong Sun, Dan Zhao, Wenbin Tian, Xiaohua Huang, Yuewu |
author_facet | Chen, Hongfei Tan, Changlong Sun, Dan Zhao, Wenbin Tian, Xiaohua Huang, Yuewu |
author_sort | Chen, Hongfei |
collection | PubMed |
description | Two-dimensional (2D) materials are building blocks for the next generation of electronic and optoelectronic devices. Tuning band gap in 2D materials over a broad range from ultraviolet to infrared is of scientific and technological importance for a wide range of applications, but its execution remains a challenge. Herein, tuning the band gap from 5.27 eV to 0.69 eV has been realized by utilizing an external electric field. Interestingly, under external electric field the MgZnO monolayer remains a direct band gap semiconductor, which has clear advantage for applications in optical devices. Moreover, the external electric field significantly leads to a red shift of the optical absorption peaks. The absorption coefficients and reflectivity decrease with increase in the external electric field in MgZnO monolayer. These findings should render these materials suitable for future applications in electronic and optoelectronic devices. |
format | Online Article Text |
id | pubmed-9077054 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90770542022-05-09 Ultrawide range tuning of direct band gap in MgZnO monolayer via electric field effect Chen, Hongfei Tan, Changlong Sun, Dan Zhao, Wenbin Tian, Xiaohua Huang, Yuewu RSC Adv Chemistry Two-dimensional (2D) materials are building blocks for the next generation of electronic and optoelectronic devices. Tuning band gap in 2D materials over a broad range from ultraviolet to infrared is of scientific and technological importance for a wide range of applications, but its execution remains a challenge. Herein, tuning the band gap from 5.27 eV to 0.69 eV has been realized by utilizing an external electric field. Interestingly, under external electric field the MgZnO monolayer remains a direct band gap semiconductor, which has clear advantage for applications in optical devices. Moreover, the external electric field significantly leads to a red shift of the optical absorption peaks. The absorption coefficients and reflectivity decrease with increase in the external electric field in MgZnO monolayer. These findings should render these materials suitable for future applications in electronic and optoelectronic devices. The Royal Society of Chemistry 2018-01-03 /pmc/articles/PMC9077054/ /pubmed/35540890 http://dx.doi.org/10.1039/c7ra11766c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Chen, Hongfei Tan, Changlong Sun, Dan Zhao, Wenbin Tian, Xiaohua Huang, Yuewu Ultrawide range tuning of direct band gap in MgZnO monolayer via electric field effect |
title | Ultrawide range tuning of direct band gap in MgZnO monolayer via electric field effect |
title_full | Ultrawide range tuning of direct band gap in MgZnO monolayer via electric field effect |
title_fullStr | Ultrawide range tuning of direct band gap in MgZnO monolayer via electric field effect |
title_full_unstemmed | Ultrawide range tuning of direct band gap in MgZnO monolayer via electric field effect |
title_short | Ultrawide range tuning of direct band gap in MgZnO monolayer via electric field effect |
title_sort | ultrawide range tuning of direct band gap in mgzno monolayer via electric field effect |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077054/ https://www.ncbi.nlm.nih.gov/pubmed/35540890 http://dx.doi.org/10.1039/c7ra11766c |
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