Low dark current Sb-based short-wavelength infrared photodetector

• Published in: AIP advances Vol. 14; no. 9; pp. 095305 - 095305-7
• Main Authors: Li, Mingming, Cheng, Yifan, Zhang, Xiangyu, Zhang, Ye, Jiang, Dongwei, Song, Zhigang, Zheng, Wanhua
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 01.09.2024; AIP Publishing LLC
• Subjects: Dark current; Diffusion barriers; Gravitational waves; Infrared detectors; Low noise; Operating temperature; Photometers; Superlattices

We have theoretically and experimentally demonstrated the feasibility of achieving ultra-low dark current in CpBnn type detectors based on a double-barrier InAs/GaSb/AlSb type-II superlattice. By employing a structure that separates the absorption region and depletion region, the diffusion, recombin...