Open AccessVisible blind ultraviolet photodetector based on CH_3NH_3PbCl_3 thin film
Author(s) -
Wenzhen Wang,
Haitao Xu,
Cai Jiang,
Jingtao Zhu,
Chaowei Ni,
Feng Hong,
Zebo Fang,
Fuzong Xu,
Siwei Cui,
Run Xu,
Linjun Wang,
Fei Xu,
Jian Huang
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.008411
Subject(s) - photodetector , materials science , responsivity , ultraviolet , optoelectronics , thin film , optics , annealing (glass) , visible spectrum , crystallinity , electrode , nanotechnology , physics , quantum mechanics , composite material
We report a prototypical device of CH 3 NH 3 PbCl 3 film ultraviolet photodetectors that were fabricated with a coplanar metal-semiconductor-metal Au interdigital electrode configuration. Pure phase CH 3 NH 3 PbCl 3 films with a good crystallinity were formed by a hybrid sequential deposition process featured with inter-diffusion of PbCl 2 and CH 3 NH 3 Cl upon annealing. The CH 3 NH 3 PbCl 3 film photodetector exhibits a high responsivity of 7.56 A /W at 360 nm, a ultraviolet/visible rejection ratio (R360 nm/R500 nm) was about two orders of magnitude and fast response speed with a rising time of 170 μs and a decay time of 220 μs. All the above results demonstrate CH 3 NH 3 PbCl 3 film photodetector as a competitive candidate in the application of visible blind UV detectors.