Tian Wei, Zhou Huanping, Li Liang
College of Physics, Optoelectronics and Energy, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, P. R. China.
Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, China.
Small. 2017 Nov;13(41). doi: 10.1002/smll.201702107. Epub 2017 Sep 12.
Hybrid organic-inorganic perovskite materials garner enormous attention for a wide range of optoelectronic devices. Due to their attractive optical and electrical properties including high optical absorption coefficient, high carrier mobility, and long carrier diffusion length, perovskites have opened up a great opportunity for high performance photodetectors. This review aims to give a comprehensive summary of the significant results on perovskite-based photodetectors, focusing on the relationship among the perovskite structures, device configurations, and photodetecting performances. An introduction of recent progress in various perovskite structure-based photodetectors is provided. The emphasis is placed on the correlation between the perovskite structure and the device performance. Next, recent developments of bandgap-tunable perovskite and hybrid photodetectors built from perovskite heterostructures are highlighted. Then, effective approaches to enhance the stability of perovskite photodetector are presented, followed by the introduction of flexible and self-powered perovskite photodetectors. Finally, a summary of the previous results is given, and the major challenges that need to be addressed in the future are outlined. A comprehensive summary of the research status on perovskite photodetectors is hoped to push forward the development of this field.
有机-无机杂化钙钛矿材料在广泛的光电器件领域引起了极大关注。由于其具有吸引人的光学和电学性质，包括高光学吸收系数、高载流子迁移率和长载流子扩散长度，钙钛矿为高性能光电探测器开辟了巨大机遇。本综述旨在全面总结基于钙钛矿的光电探测器的重要成果，重点关注钙钛矿结构、器件构型和光电探测性能之间的关系。介绍了各种基于钙钛矿结构的光电探测器的最新进展。重点在于钙钛矿结构与器件性能之间的相关性。接下来，突出了带隙可调谐钙钛矿以及由钙钛矿异质结构构建的混合光电探测器的最新发展。然后，介绍了提高钙钛矿光电探测器稳定性的有效方法，随后引入了柔性和自供电钙钛矿光电探测器。最后，总结了先前的结果，并概述了未来需要解决的主要挑战。希望对钙钛矿光电探测器研究现状的全面总结能推动该领域的发展。
