Single-Layer ZnO Hollow Hemispheres Enable High-Performance Self-Powered Perovskite Photodetector for Optical Communication

Nano-Micro Letters

Xiyan Pan¹  Liangping Shen¹  Jianqiang Zhang¹  Hai Zhou¹  Rui Wang¹  Jun Zhang¹  Hao Wang¹  Dingjun Wu¹  Ronghuan Liu¹  Li Tao¹ 

[1] Hubei Key Laboratory of Ferro and Piezoelectric Materials and Devices, School of Microelectronics and Faculty of Physics and Electronic Science, Hubei University, 430062, Wuhan, People’s Republic of China;

关键词: Hemisphere array;    Perovskite;    Photodetector;    Reflection reduction;    Optical communication;   

DOI  :  10.1007/s40820-021-00596-5

来源: Springer

【 摘 要 】

tsSingle-layer hollow ZnO hemispherical arrays behaving light trapping effect as the electron transport layer in perovskite photodetectors were first introduced.Our photodetectors showed high self-powered performances with a LDR of 120.3 dB, a detectivity of 4.2 × 1012 Jones, rise/fall time of 13/28 µs and the f−3 dB of up to 28 kHz.Benefiting from the high device performance, the photodetector was demonstrated to the directional transmission of encrypted files as the signal receiving port with super high accuracy.

【 授权许可】

CC BY