Progress of Metal Halide Perovskite Crystals From a Crystal Growth Point of View

Metal halide perovskites are demonstrated to show fascinating optical and electronic properties, including highly efficient luminescence, outstanding carrier transport behavior, and large light absorption coefficient. In particular, halide perovskite single crystals are characterized with superior optoelectronic performance and enhanced stability, emerging as competitive candidates for applications in solar cells, light-emitting diodes, lasers, photodetectors, and high-energy radiation detectors. Recently, remarkable advances have been achieved to grow perovskite single crystals, while there are also many challenges in the control of growth defects and further improvement of the crystal quality. Concerning these factors, recent progress of metal halide perovskite crystals from the view of crystal growth is systematically summarized. Moreover, some ongoing challenges and perspectives for halide perovskite crystals are also proposed, which will possibly provide deeper insight into the exploration of novel perovskite crystals and related devices.