期刊
CHEMISTRY OF MATERIALS
卷 33, 期 14, 页码 5668-5674出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.1c01219
关键词
-
资金
- National Natural Science Foundation of China [201901166]
- Guangdong Natural Science Foundation [2019A1515010692]
In this study, an organic-metal halide hybrid with a one-dimensional structure at the molecular level has been reported, showing a record-setting photoluminescence quantum efficiency and high color rendering index as a promising single-component white-light emitter. The experimental observation of photoluminescence quenching and transformation suggests a degradation process involving water-molecule replacement and moisture-induced cleavage of 1D lead halide chains.
Molecular low-dimensional organic-metal halide hybrids have shown great potentials as light emitters with excellent color tunability. High photoluminescence quantum efficiency (PLQE) and high color rendering index (CRI) are two essential requirements for them to act as down conversion phosphors to achieve single-component white-light emission. Here, we report an organic-metal halide hybrid [C4N2H12](3)[PbBr5](2)center dot 4DMSO with a one-dimensional (1D) structure at the molecular level, which possesses a record-setting PLQE of 60% and high CRI value of 84 as a promising single-component white-light emitter. We have also experimentally observed the photoluminescence quenching of [C4N2H12](3)[PbBr5](2)center dot 4DMSO and its transformation to 0D [C4N2H12](4)[Pb2Br11]Br center dot 4H(2)O, which suggests that the degradation process involves water-molecule replacement and moisture-induced cleavage of 1D lead halide chains.
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