Organic Bulk-Heterojunction-Integrated Flexible Perovskite Photodetection Arrays for High-Speed Broadband Optical Communication.

ABSTRACT: The demand for self-powered, broadband photodetectors is rising in fields like artificial intelligence, health monitoring, and optical communications. However, conventional perovskite photodetectors face limited visible absorption and poor ambient stability. Here, we report a high-performance integrated photodetector combining a perovskite (Cs_n.15FA_n.85PbI₃) absorber with an organic bulk-heterojunction (BHJ) structure for broadband photon harvesting up to 1000 nm. The device achieves a peak external quantum efficiency (EQE) of 84% in the visible range (400-700 nm) and 63% in the near-infrared (NIR, 700-1000 nm). Benefiting from optimized energy band alignment, the photodetector exhibits a self-powered responsivity of 0.3 A W^-1 and a fast response

SUBMITTER: Hong X 

PROVIDER: S-EPMC12904039 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature