Implementing high-performance near-infrared photomultiplication-type organic photodetectors by synergistic effects of energetic disorder and charge tunneling injection

作者：Guo, Dechao; Yang, Dezhi^*; Li, Ji; He, Guo; Li, Jiaxin; Fu, Jinghao; Wang, Linge^*; Ma, Dongge^*

来源：Applied Physics Letters, 2023, 123(24): 243501.

DOI：10.1063/5.0177719

A high efficiency near-infrared (NIR) photomultiplication-type organic photodetector (PM-OPD) has been achieved by combining the energetic disorder and trap-assisted charge tunneling injection. The performance of the prepared NIR PM-OPD with simple structure was significantly improved, and the external quantum efficiency and specific detectivity (D*) reached 5675% and 5.0 x 10(11) Jones, respectively. Furthermore, the high-performance NIR PM-OPD also showed application in human heart rate detection.