Cs₃Cu₂I₅ 制备与光电应用研究进展

Lead halide perovskites have a wide range of application prospects in optoelectronic devices，including solar cells，light-emitting diodes（LEDs），photodetectors，lasers，etc. However，the poor material stability and the inherent toxicity of lead have hindered its further commercialization. Therefore，all-inorganic lead-free halide perovskites and their derivatives have become one of the research hotspots. Cs₃Cu₂I₅ is a new all-inorganic lead-free halide perovskite derivative，which allows the possibility to be applied in a variety of fields due to its nontoxicity，excellent optical properties and good stability under ambient conditions. This article introduces the various synthesis methods，physical properties and the applications in LEDs，ultraviolet photodetectors，scintillators and other fields of Cs₃Cu₂I₅. In addition，the challenges and prospects of Cs₃Cu₂I₅ in optoelectronic fields are presented.