Perovskite Transparent Conducting Oxide for the Design of a Transparent, Flexible, and Self-Powered Perovskite Photodetector
Perovskite Transparent Conducting Oxide for the Design of a Transparent, Flexible, and Self-Powered Perovskite Photodetector
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用于透明、柔性和自供电钙钛矿光电探测器设计的钙钛矿透明导电氧化物
DOI：
10.1021/acsami.0c01298
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发表时间：
2020
影响因子：
9.5
通讯作者：
Yang Hao
中科院分区：
文献类型：
--
作者：
Xu Ruixing;Min Liangliang;Qi Zhimin;Zhang Xiyuan;Jian Jie;Ji Y;a;Qian Fengjiao;Fan Jiyu;Kan Caixia;Wang Haiyan;Tian Wei;Li Liang;Li Weiwei;Yang Hao
人们迫切需要透明和灵活的电子设备，以满足对轻便、灵活和便携的下一代设备的巨大需求。透明导电氧化物(TCO)，如铟-锡氧化物，是设计透明和灵活的电子器件的基本部件。然而，铟是稀有和昂贵的。在本文中，我们报道了在透明和柔性的云母衬底上制备低成本的钙钛矿型SrVO_3TCO薄膜，并进一步展示了它们作为TCO电极的用途，以构建透明、柔性和自供电的钙钛矿型光电探测器。在经过105次弯曲后，SrVO_3保持了优良的稳定光学透明性和导电性。在没有外部电源的情况下，所构建的全钙钛矿型光电探测器具有高响应度(42.5 mA W-1)、快速响应时间(3.09/1.23ms)以及在极端90°弯曲角下经过数十次循环弯曲后良好的柔韧性和弯曲稳定性。我们的结果表明，低成本和结构兼容的过渡金属基钙钛矿氧化物，如SrVO_3，作为TCO电极，在构建高性能、透明、灵活和便携的智能电子产品方面具有巨大的潜力。
Transparent and flexible electronic devices are highly desired to meet the great demand for next-generation devices that are lightweight, flexible, and portable. Transparent conducting oxides (TCOs), such as indium-tin oxide, serve as fundamental components for the design of transparent and flexible electronic devices. However, indium is rare and expensive. Herein, we report the fabrication of low-cost perovskite SrVO3TCO films on transparent and flexible mica substrates and further demonstrate their utilization as a TCO electrode for building a transparent, flexible, and self-powered perovskite photodetector. Superior stable optical transparency and electrical conductivity are retained in SrVO3after bending up to 105cycles. Without an external power source, the constructed all-perovskite photodetector exhibits a high responsivity (42.5 mA W–1), fast response time (3.09/1.23 ms), and an excellent flexibility and bending stability after dozens of cycles of bending at an extreme 90° bending angle. Our results demonstrate that low-cost and structure-compatible transition metal-based perovskite oxides, such as SrVO3, as TCO electrodes have huge potential for building high-performance transparent, flexible, and portable smart electronics.