Progress in and outlook on polarization-sensitive perovskite photodetectors

Abstract

Polarization-sensitive photodetectors can present polarization information as electrical signals. They offer increasingly extensive applications in remote sensing imaging, environmental monitoring and medical detection owing to their multi-dimensional detection of light-based information transfer. In order to cope with the complex detection environment and obtain excellent detection performance, polarization-sensitive photodetectors based on advanced semiconductor materials have received extensive attention. Perovskites are promising as novel candidates with excellent optoelectronic properties and variability, which make it possible to solve various problems of traditional polarization-sensitive photodetectors. In recent years, various perovskite polarization-sensitive photodetectors with high photocurrent, high sensitivity and fast response have been continuously reported. Herein, the research status in the field of perovskite polarization-sensitive photodetectors, including linearly and circularly polarized photodetectors, is comprehensively reviewed. From the perspective of the crystal structure, macroscopic morphology and physical effects of perovskites, we discuss the design principles and analyze the device performance in detail. Furthermore, we highlight the problems in the field and propose the prospects for future development.