Black phosphorous/graphene van der Waals heterostructure-based plasmonic metasurfaces for advanced infrared photodetectors

Shinpei Ogawa; Masaaki Shimatani; Shoichiro Fukushima

doi:10.1117/12.2662909

13 June 2023 Black phosphorous/graphene van der Waals heterostructure-based plasmonic metasurfaces for advanced infrared photodetectors

Shinpei Ogawa, Masaaki Shimatani, Shoichiro Fukushima

Author Affiliations +

Proceedings Volume 12534, Infrared Technology and Applications XLIX; 125341T (2023) https://doi.org/10.1117/12.2662909
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

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Abstract

Black phosphorous (BP) is a promising material for infrared (IR) photodetectors. We theoretically investigated and proposed BP/graphene van der Waals (vdW) heterostructure-based metasurface wavelength-selective IR photodetectors that operate on the basis of plasmonic resonance. The proposed structure consists of a top layer consisting of periodic monolayers of BP, a graphene-based vdW heterostructure layer on a middle dielectric layer, and a bottom reflector. The periodic BP produces polarization-dependent localized surface plasmon resonance (LSPR) according to its armchair or zigzag edge, resulting in strong wavelength-selective absorption. The graphene layer can enhance the LSPR of BP, inducing propagating surface plasmon resonance on graphene. These results will contribute to the realization high-performance BP/graphene-based IR photodetectors.

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Shinpei Ogawa, Masaaki Shimatani, and Shoichiro Fukushima "Black phosphorous/graphene van der Waals heterostructure-based plasmonic metasurfaces for advanced infrared photodetectors", Proc. SPIE 12534, Infrared Technology and Applications XLIX, 125341T (13 June 2023); https://doi.org/10.1117/12.2662909

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