Li Ludong, Ye Shuai, Qu Junle, Zhou Feifan, Song Jun, Shen Guozhen
Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen, 518060, P. R. China.
State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, P. R. China.
Small. 2021 May;17(18):e2005606. doi: 10.1002/smll.202005606. Epub 2021 Mar 16.
In recent years, metal halide perovskites have been widely investigated to fabricate photodetectors for image sensing due to the excellent photoelectric performance, tunable bandgap, and low-cost solution preparation process. In this review, a comprehensive overview of the recent advances in perovskite photodetectors for image sensing is provided. First, the key performance parameters and the basic device types of photodetectors are briefly introduced. Then, the recent developments of image sensors on the basis of different dimensional perovskite materials, including 0D, 1D, 2D, and 3D perovskite materials, are highlighted. Besides the device structures and photoelectric properties of perovskite image sensors, the preparation methods of perovskite photodetector arrays are also analyzed. Subsequently, the single-pixel imaging of perovskite photodetectors and the strategies to fabricate narrowband perovskite photodetectors for color discrimination are discussed. Finally, the potential challenges and possible solutions for the future development of perovskite image sensors are presented.
近年来，由于具有优异的光电性能、可调节的带隙以及低成本的溶液制备工艺，金属卤化物钙钛矿被广泛研究用于制造用于图像传感的光电探测器。在本综述中，对用于图像传感的钙钛矿光电探测器的最新进展进行了全面概述。首先，简要介绍了光电探测器的关键性能参数和基本器件类型。然后，重点介绍了基于不同维度钙钛矿材料（包括0D、1D、2D和3D钙钛矿材料）的图像传感器的最新进展。除了钙钛矿图像传感器的器件结构和光电特性外，还分析了钙钛矿光电探测器阵列的制备方法。随后，讨论了钙钛矿光电探测器的单像素成像以及制造用于颜色识别的窄带钙钛矿光电探测器的策略。最后，提出了钙钛矿图像传感器未来发展的潜在挑战和可能的解决方案。
