Enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays

Abstract Optoelectronic devices in the UV range have many applications including deep-UV communications, UV photodetectors, UV spectroscopy, etc. Graphene has unique exciton resonances, that have demonstrated large photosensitivity across the UV spectrum. Enhancing UV absorption in graphene has the...

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Autores principales:	Xueling Cheng, Yunshan Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2db6a175dc484c69823b4d57b4ce2be0
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spelling	oai:doaj.org-article:2db6a175dc484c69823b4d57b4ce2be02021-12-02T18:27:49ZEnhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays10.1038/s41598-021-87868-72045-2322https://doaj.org/article/2db6a175dc484c69823b4d57b4ce2be02021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87868-7https://doaj.org/toc/2045-2322Abstract Optoelectronic devices in the UV range have many applications including deep-UV communications, UV photodetectors, UV spectroscopy, etc. Graphene has unique exciton resonances, that have demonstrated large photosensitivity across the UV spectrum. Enhancing UV absorption in graphene has the potential to boost the performance of the various opto-electronic devices. Here we report numerical study of UV absorption in graphene on aluminum and magnesium hole-arrays. The absorption in a single-layer graphene on aluminum and magnesium hole-arrays reached a maximum value of 28% and 30% respectively, and the absorption peak is tunable from the UV to the visible range. The proposed graphene hybrid structure does not require graphene to be sandwiched between different material layers and thus is easy to fabricate and allows graphene to interact with its surroundings.Xueling ChengYunshan WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xueling Cheng Yunshan Wang Enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays
description	Abstract Optoelectronic devices in the UV range have many applications including deep-UV communications, UV photodetectors, UV spectroscopy, etc. Graphene has unique exciton resonances, that have demonstrated large photosensitivity across the UV spectrum. Enhancing UV absorption in graphene has the potential to boost the performance of the various opto-electronic devices. Here we report numerical study of UV absorption in graphene on aluminum and magnesium hole-arrays. The absorption in a single-layer graphene on aluminum and magnesium hole-arrays reached a maximum value of 28% and 30% respectively, and the absorption peak is tunable from the UV to the visible range. The proposed graphene hybrid structure does not require graphene to be sandwiched between different material layers and thus is easy to fabricate and allows graphene to interact with its surroundings.
format	article
author	Xueling Cheng Yunshan Wang
author_facet	Xueling Cheng Yunshan Wang
author_sort	Xueling Cheng
title	Enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays
title_short	Enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays
title_full	Enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays
title_fullStr	Enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays
title_full_unstemmed	Enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays
title_sort	enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2db6a175dc484c69823b4d57b4ce2be0
work_keys_str_mv	AT xuelingcheng enhancedultravioletabsorptioningraphenebyaluminumandmagnesiumholearrays AT yunshanwang enhancedultravioletabsorptioningraphenebyaluminumandmagnesiumholearrays
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Enhanced ultraviolet absorption in graphene by aluminum and magnesium hole-arrays

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