High-quality perovskite MAPbI3 single crystals for broad-spectrum and rapid response integrate photodetector

Organic–inorganic single-crystalline perovskites have attracted significant attentions due to their exceptional progress in intrinsic properties’ investigation and applications in photovoltaics and optoelectronics . In this study, the large perovskite CH 3 NH 3 PbI 3 single crystal with the largest length of 80 mm was prepared through the method of inverse-temperature crystallization. Meanwhile, the mass production of integrate photodetectors have been fabricated on the single-crystalline wafer and the photoresponse performances were investigated. The results show that the single-crystalline photodetectors have broad spectrum response to 900 nm, rapid response speed (<40 µs) and excellent stability. These findings are of great importance for future promising perovskite single crystalline for integrated photoelectronic application.