Recent progress in polymer-based infrared photodetectors

Abstract

Infrared (IR) photodetectors (PDs) have developed rapidly due to their potential applications in remote sensing, infrared imaging, and biomedical testing. The designable molecular structure, solution processability, large-area preparation, and intrinsic flexibility of polymer materials make it a potential material for a new generation of IR PDs. Through different molecular design strategies and innovative device architectures, the performance of PDs is optimized, and its application scenarios are expanded, which further promotes the rapid development of IR PDs. In this review, we summarized the development and recent progress of polymer-based organic photodiodes (OPDIs) and organic phototransistors (OPTs) including the brief mechanism and design strategy. Also, the challenges and perspectives of infrared photodetectors are presented, aiming to provide researchers with new design ideas and promote their further development.