Open AccessCover Image
Author(s) -
Geng Xiangshun,
Zhang Peigen,
Ren Jun,
Dun GuanHua,
Li Yuanyuan,
Jin Jialun,
Wang Chaolun,
Wu Xing,
Xie Dan,
Tian He,
Yang Yi,
Ren TianLing
Publication year - 2022
Publication title -
infomat
Language(s) - English
Resource type - Reports
ISSN - 2567-3165
DOI - 10.1002/inf2.12356
Subject(s) - responsivity , graphene , perovskite (structure) , optoelectronics , van der waals force , materials science , photodetector , monolayer , heterojunction , dark current , specific detectivity , crystal (programming language) , electron mobility , cover (algebra) , nanotechnology , physics , chemistry , computer science , crystallography , quantum mechanics , molecule , mechanical engineering , engineering , programming language
A mixed‐dimensional van der Waals (vdW) graphene/perovskite photodetector is fabricated by directly growing single crystal CH 3 NH 3 PbBr 3 perovskite on monolayer graphene. The hybrid device achieves self‐powering behavior and exhibits comprehensive photoresponse properties, including a fast response time (2.05 µs), high detectivity (4.65×10 12 Jones), and strong responsivity (10.41 A W ‐1 ). This prominent performance is mainly attributed to the high‐quality graphene/perovskite heterojunction suppressing the dark current and the strong interface coupling caused by the effective transport of photo‐generated carriers. This work (DOI: 10.1002/inf2.12347 ) provides an effective guideline for the development of next‐generation directly integrated vdW optoelectronic devices.