Perovskite Photodetectors: Efficient Visible–Near‐Infrared Hybrid Perovskite:PbS Quantum Dot Photodetectors Fabricated Using an Antisolvent Additive Solution Process (Advanced Optical Materials 23/2018)

A highly sensitive photodetector with broadband response by using perovskite as the active layer is reported by Jiang Huang, Junsheng Yu, and co-workers in article number 1800979. To extend the spectral response range from visible (Vis) to near-infrared (NIR) wavelengths, an antisolvent additive solution process is demonstrated to dope PbS quantum dots between the grain boundaries of the perovskite. The image shows the perovskite photodetector generating an electrical signal under Vis–NIR light irradiation with the relevant wavelength response.