Lead-Free Perovskite Single Crystals: A Brief Review
Xianfang Zhou,
Yansong Wang,
Chuangye Ge,
Bin Tang,
Haoran Lin,
Xintao Zhang,
Yun Huang,
Quanyao Zhu,
Hanlin Hu
Affiliations
Xianfang Zhou
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Yansong Wang
Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Chuangye Ge
Postdoctoral Innovation Practice Base, Hoffman Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen 518055, China
Bin Tang
Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Haoran Lin
Hoffman Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen 518055, China
Xintao Zhang
Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen 518036, China
Yun Huang
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Quanyao Zhu
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Hanlin Hu
Hoffman Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd, Nanshan District, Shenzhen 518055, China
Lead-free perovskites have received remarkable attention because of their nontoxicity, low-cost fabrication, and spectacular properties including controlled bandgap, long diffusion length of charge carrier, large absorption coefficient, and high photoluminescence quantum yield. Compared with the widely investigated polycrystals, single crystals have advantages of lower trap densities, longer diffusion length of carrier, and extended absorption spectrum due to the lack of grain boundaries, which facilitates their potential in different fields including photodetectors, solar cells, X-ray detectors, light-emitting diodes, and so on. Therefore, numerous research focusing on the novel properties, preparation methods, and remarkable progress in applications of lead-free perovskite single crystals (LFPSCs) has been extensively studied. In this review, the current advancements of LFPSCs are briefly summarized, including the synthesis approaches, compositional and interfacial engineering, and stability of several representative systems of LFPSCs as well as the reported practical applications. Finally, the critical challenges which limit the performance of LFPSCs, and their inspiring prospects for further developments are also discussed.
