摘要 : Poor stability has long been a critical issue for lead halide perovskites that impeded their practical applications. To address this issue, we propose a novel and facile strategy to synthesize a highly stable fluorescent methylamm... 展开 Poor stability has long been a critical issue for lead halide perovskites that impeded their practical applications. To address this issue, we propose a novel and facile strategy to synthesize a highly stable fluorescent methylammonium lead bromide perovskite (MAPbBr(3))@PbBr(OH) composite through introducing a metal-organic framework (MOF) viz. a metal azolate framework (MAF-6) into the perovskite precursor solution during the ligand-assisted reprecipitation process. Different from the embedment of PNCs in MOFs, this strategy is achieved based on the hydrolysis reaction of PbBr2 triggered by a MOF combined with the confining synthesis of perovskite crystals inside the MOF cavity. The obtained MAPbBr(3)@PbBr(OH) composite exhibits high PLQY (similar to 45%) and enhanced stability against heat, UV light and especially various polar solvents. It is believed that the prepared MAPbBr(3)@PbBr(OH) with excellent solvent stability implies great potential as a green-emitting phosphor for luminescence application in a harsh environment, especially in a solvent system. 收起