Research Advances in Organic-Inorganic Perovskite Single Crystal Detectors

光电探测器广泛应用于民用和军事领域，如电磁辐射探测、环境监测、光通信和导弹制导等。有机-无机杂化钙钛矿单晶拥有优异的光电探测性能，与传统半导体材料(如Si、GaAs和GaN等)相比还有具有易掺杂、易制备、环境友好等优点。如今，有机–无机杂化钙钛矿单晶光电探测器在波长调控、灵敏度、开关比和暗电流等方面已经经历了相当大的进步，本文从光电探测的基本原理入手，主要介绍了有机–无机杂化钙钛矿单晶光电探测器的研究进展和现状，讨论了探测器性能改进和优化策略，旨在引发钙钛矿材料在探测领域发展的新思路。Photodetectors are widely used in both civilian and military fields, such as electromagnetic radiation detection, environmental monitoring, optical communication and missile guidance, etc. Organic-inorganic perovskite single crystals have excellent photoelectric detection performance. Compared with traditional semiconductor materials (such as Si, GaAs and GaN, etc.), they also have the advantages of easy doping, easy preparation and environmental friendliness. Nowadays, organic-inorganic perovskite single crystal photodetectors have made considerable progress in aspects such as wavelength regulation, sensitivity, switching ratio and dark current. Starting from the basic principles of photodetection, this paper mainly introduces the research progress and current situation of organic-inorganic perovskite single crystal photodetectors, and discusses the performance improvement and optimization strategies of the detectors. It aims to trigger new ideas for the development of perovskite materials in the field of detection.