Improved responsivity and detectivity of LPE HgCdTe short-wavelength infrared photodetector by tuning the composition gradient

Dan Yang,Jiamu Lin,Chun Lin,Xi Wang,Songmin Zhou,Huijun Guo,Ruijun Ding,Li He

Solid-State Electronics（2023）

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摘要

•Proposing a fabrication method to enhance the detection capability of LPE HgCdTe avalanche focal plane array (FPA) for SWIR signals.•Tuning the composition gradient of HgCdTe material achieves different composition (band gap) in the absorption and multiplication regions.•Realized improvements in responsivity and detectivity (signal-to-noise ratio).

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关键词

HgCdTe, Avalanche photodetector, Focal plane array, SWIR, Responsivity, Detectivity

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