Abstract
Stability is a key problem that hinders the practical application of lead halide perovskite. Therefore, all-inorganic perovskite CsPbX3 monocrystalline films are urgently needed to fabricate photoelectric devices. Herein, a low-temperature and substrate-independent growth method is demonstrated to grow millimeter-level inorganic perovskite monocrystalline thin films. These films present good optical and electrical properties comparable to bulk ones. What is more, they exhibit excellent long-term stability toward humidity and thermal treatment. The as-grown CsPbBr3 monocrystalline films are then fabricated into photodetectors with high photodetection performance. These results demonstrate that the CsPbBr3 monocrystalline films have potential in fabricating high-performance optoelectronic devices.
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