Photophysics of metal halide perovskites: From materials to devices

摘要

Metal halide perovskites can be easily fabricated with low-temperature solution processes, and they are a promising class of materials for solar cells, light emitters, and nonlinear optical devices. The perovskites are direct-gap semiconductors with sharp absorption edges and a highly efficient luminescence with no Stokes shift. In addition, the perovskites exhibit superior optoelectronic properties such as efficient photon recycling and long free-carrier diffusion. In this review, we discuss the fundamental optical properties of bulk crystals and the operation principles of heterodiode devices based on these novel functional materials. (C) 2018 The Japan Society of Applied Physics