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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 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.

SUBMITTER: Cheng X

PROVIDER: S-EPMC8055649 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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

Cheng Xueling X Wang Yunshan Y

Scientific reports 20210419 1

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 gr ...[more]

PMID: 33875746

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Dataset Information

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

Publications

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

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