Morphology, optical and photoelectric properties of CH3NH3PbBr3 single crystal

Abstract Perovskite CH 3 NH 3 PbBr 3 single crystals were synthesized by ITC method with DMF as solvent. X-ray diffraction was used to determine the structure of as-grown CH 3 NH 3 PbBr 3 single crystal. The morphology of CH 3 NH 3 PbBr 3 single crystal was measured by HRTEM and SEAD, and the result shows that the grown CH 3 NH 3 PbBr 3 crystal is of good crystallinity. Optical properties were investigated by cathodoluminescence (CL) and photoluminescence (PL). The photoelectric performance of a photodetector based CH 3 NH 3 PbBr 3 single crystal was studied. The response time of photocurrent of the detector is 200ms in the rise time and 250ms in the fall time. Our results show CH 3 NH 3 PbBr 3 single crystal has great potential for photoelectric device field.