Authors: Makhsud I Saidaminov, Banavoth Murali, Md Azimul Haque, Jawaher Almutlaq, Smritakshi Sarmah, Xiao‐He Miao, Raihana Begum, Ayan A Zhumekenov, Ibrahim Dursun, Namchul Cho, Omar F Mohammed, Tom Wu, Osman M Bakr
Keywords: Inorganic lead halide; Self powered photodetection
Year: 6 December 2016
Abstract: A rapid, low-temperature and solution-based route is developed for growing large-sized cesium lead halide perovskite single crystals under ambient conditions. An ultralow minority carrier concentration was measured in CsPbBr3 (≈108 holes per cm3, much lower than in any other lead halide perovskite and crystalline silicon), which enables to realize self-powered photodetectors with a high ON/OFF ratio (105).