Chiral 1D perovskite microwire arrays for circularly polarized light detection

• Published in: Giant (Oxford, England) England), 2022-03, Vol.9, p.100086, Article 100086
• Main Authors: Zhao, Yingjie, Li, Xinyi, Feng, Jiangang, Zhao, Jinjin, Guo, Yangwu, Yuan, Meng, Chen, Gaosong, Gao, Hanfei, Jiang, Lei, Wu, Yuchen
• Format: Article
• Language: English
• Subjects: 1D perovskite; Chiral; Circular polarization; Microwire arrays; Photodetectors
• ISSN: 2666-5425; 2666-5425
• DOI: 10.1016/j.giant.2021.100086

•Chiral 1D perovskite single-crystal microwire arrays are fabricated by using a capillary-bridge-manipulated method.•By the synergy of the excellent crystallinity and sensitive circular-polarization absorption leads to high-performance CPL photodetectors, with a maximum anisotropy factor of 0.23, responsivity exceeding 26 mA W − 1, and detectivity exceeding 2.2 × 1011 jones.•Microwire arrays present impressive environmental stability under ambient conditions for 30 days. Detection of circularly polarized light (CPL) accelerates the development of various optical technologies, but the additional quarter-wave plate and linear polarizer are required for conventional polarized light detectors, resulting in tremendous difficulty in integration and miniaturization of the devices. Herein, we fabricate pure (010)-orientated chiral one-dimensional (1D) perovskite microwire arrays with high crystallinity, strict alignment, and homogeneous size by a capillary-bridge-manipulated method. By the synergy of the excellent crystallinity and pure crystallographic orientation, high-performance CPL photodetectors are fabricated, with a maximum anisotropy factor of 0.23, responsivity exceeding 26 mA W −1, and detectivity exceeding 2.2 × 1011 Jones. Furthermore, the CPL photodetectors based on microwire arrays also exhibit impressive environmental stability under ambient conditions. Pure (010)-orientated chiral 1D perovskite single-crystalline microwire arrays are fabricated by the capillary-bridge-manipulated method. 1D perovskite microwire arrays exhibit impressive environmental stability under ambient conditions. Chiral microwire arrays integrate the excellent crystallinity and pure crystallographic orientation, yielding high-performance CPL photodetectors with a maximum anisotropy factor of 0.23, responsivity exceeding 26 mA W − 1, and detectivity exceeding 2.2 × 1011 Jones. [Display omitted]