Ultraviolet-Visible-Near-Infrared Broadband Photodetector Enabled by CsAgBiBr: Sn/Conjugated Polymer Heterojunction.

Broadband photodetectors covering ultraviolet (UV) to near-infrared (NIR) wavelengths play an essential role in communications, imaging, and biosensing. Developing a single photodetector with a broadband optical response operating at room temperature can significantly reduce the complexity and cost of receiver systems for multispectral applications. In this work, utilizing the porous structure characteristics of CsAgBiBr:Sn thin films, a self-powered detector with broad spectral response (UV-vis-NIR) was achieved by constructing an effective CsAgBiBr:Sn/PDPP3T heterojunction.