MAPbBr3-nXn (X = Cl, I) single-crystal narrowband photodetectors for potential application in traffic light recognition
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影响因子：6.4
DOI码：10.1039/d3tc01236k
发表刊物：Journal of Material Chemistry C
关键字：OPTICALPROPERTIES;PEROVSKITE;PHOTODIODES;FABRICATION
摘要：A narrowband photodetection system that can specifically distinguish green, yellow and red light has potential application in intelligent transportation systems. In this work, a series of MAPbBr(3-n)X(n) (X = Cl, I) single-crystal films with controllable thickness have been grown through space-limited inverse temperature crystallization. Filter-free narrowband photodetectors with peak responses at 505, 590 and 620 nm, corresponding to the green, yellow and red of traffic lights, are successfully achieved through the charge collection narrowing mechanism. The as-fabricated narrowband photodetectors demonstrate superior performance, with full width at half-maximum all less than 35 nm, a maximum responsivity of 182 mA W-1, and specific detectivity of 9.68 x 10(10) Jones. Finally, a traffic light recognition assembly based on the three narrowband photodetectors is constructed. The photocurrent of the photodetector is approximately five to ten times that of the interference from other light sources, indicating good color recognition capability for traffic lights.
合写作者：Shi-Fu Li, Jie Yu, Liang-Liang Zhou, Jiang Wang, Can Fu, Xiang An, Jian-An Huang, Li Wang, Lin-Bao Luo
第一作者：Feng-Xia Liang
通讯作者：Li Wang, Lin-Bao Luo
文献类型：Article
卷号：11
期号：30
页面范围：10198-10204
ISSN号：2050-7526
是否译文：否
发表时间：2023-08-03