材料科学
光探测
钙钛矿(结构)
结晶度
响应度
圆极化
光电探测器
光电子学
极化(电化学)
光学
比探测率
纳米技术
微带线
化学工程
复合材料
物理
化学
物理化学
工程类
作者
Yingjie Zhao,Meiqiu Dong,Jiangang Feng,Jinjin Zhao,Yangwu Guo,Yue Fu,Hanfei Gao,Junchuan Yang,Lei Jiang,Yuchen Wu
标识
DOI:10.1002/adom.202102227
摘要
Abstract The realization of polarized photodetection vigorously accelerates the development of applications in quantum communication, medicine, imaging, and sensing. Polarized light detection has been realized based on chiral perovskites, but the high concentrations of toxic lead and instability in those reported perovskites impose difficulties for their commercial applications. Furthermore, the precise patterning of perovskite arrays with high crystallinity is in high demand for the integration of optoelectronic devices. Herein, pure (001)‐orientated lead‐free chiral 2D double perovskite single‐crystalline microwire arrays are fabricated by the capillary‐bridge confined assembly technique. Perovskite microwire arrays present remarkable environmental stability under ambient conditions. With the synergy of the excellent crystallinity and sensitive circular‐polarization absorption of chiral perovskite microwire arrays, outstanding circularly polarized light photodetectors are realized, with responsivity exceeding 52 mA W −1 and detectivity exceeding 3.9 × 10 11 Jones.
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