发光学报2025，Vol.46Issue(5)：847-862,16.DOI:10.37188/CJL.20250004
光门控效应调控光电探测器响应特性研究进展
Research Progress on Photogating Effect in Regulating Response Characteristics of Photodetectors
摘要
Abstract
The performance of photodetectors is determined by various parameters,including light absorption efficiency,sensitivity,and accuracy,all of which are influenced by multiple photoelectric conversion effects such as the photovoltaic,photoconductive,pyroelectric,photothermal,and photogating effects.The photogating effect refers to the phenomenon in which some of the photogenerated charge carriers in the photosensitive material are trapped and enter trap states upon light exposure,subsequently affecting the charge carrier transport proper-ties within the conductive channel of the photodetector.This paper reviews the photogating effect and its role in enhancing photodetector performance.It begins with an introduction to the basic principles of the photogating ef-fect,followed by a discussion of its impact on photodetector performance,including gain,bandwidth,responsivi-ty,response time,and transfer characteristics.The photogating effect primarily enhances the sensitivity,dynam-ic range,and signal-to-noise ratio of photodetectors to weak light signals by modulating the output electrical signal in response to incident light.In particular,this paper emphasizes the application of the photogating effect in low-dimensional materials-based photodetectors,such as nanowires,graphene,and other two-dimensional materials.Finally,the potential applications of the photogating effect in perovskite photodetectors are explored,and future research directions are proposed.关键词
光门控效应/增益/响应度/低维材料/钙钛矿Key words
photogating effect/gain/responsivity/low-dimensional materials/perovskite分类
电子信息工程引用本文复制引用
刘豪,宋宏伟,陈聪..光门控效应调控光电探测器响应特性研究进展[J].发光学报,2025,46(5):847-862,16.基金项目
国家自然科学基金(U21A2076,52473257) （U21A2076,52473257）
河北省自然科学基金(E2024202086,E2024202300) Supported by National Natural Science Foundation of China(U21A2076,52473257) （E2024202086,E2024202300）
Natural Science Foundation of Hebei Province(E2024202086,E2024202300) （E2024202086,E2024202300）
