InAs/GaAsSb Type-II superlattice LWIR focal plane arrays detectors grown on InAs substrates

Min Huang,Jianxin Chen,Zhicheng Xu,Jiajia Xu,Zhizhong Bai,Fangfang Wang,Yi Zhou,Aibo Huang,Ruijun Ding,Li He

IEEE Photonics Technology Letters（2020）

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摘要

InAs/GaAsSb type-II superlattice (T2SL) materials grown at a higher temperature and lattice-matched to InAs substrates are considered to have significant advantages in long wavelength infrared (LWIR) detection. In this work, an InAs/GaAsSb T2SL LWIR focal plane array (FPA) was fabricated and evaluated. The FPA has a format of 320 × 256 with a pixel pitch of 30 μm and exhibits a 100% cutoff wavelen...

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关键词

Substrates,Epitaxial growth,Superlattices,Detectors,Photodetectors,Temperature measurement,Lattices

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