Implementing high-performance near-infrared photomultiplication-type organic photodetectors by synergistic effects of energetic disorder and charge tunneling injection
Dechao Guo, Dezhi Yang, Ji Li, Guo He, Jiaxin Li, J. B. Fu, Linge Wang, Dongge Ma
Abstract
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 × 1011 Jones, respectively. Furthermore, the high-performance NIR PM-OPD also showed application in human heart rate detection.
Topics & Concepts
PhotodetectorQuantum tunnellingQuantum efficiencyInfraredOptoelectronicsMaterials scienceOpticsPhysicsPerovskite Materials and ApplicationsOrganic Electronics and PhotovoltaicsAnalytical Chemistry and Sensors