一维面共享混合溴化铅中高效的自陷激子发射
Highly efficient self-trapped exciton emission in a one-dimensional face-shared hybrid lead bromide.
作者信息
Qi Zhikai, Chen Yali, Guo Yao, Yang Xuelian, Gao Huizhi, Zhou Guojun, Li Shi-Li, Zhang Xian-Ming
机构信息
Key Laboratory of Magnetic Molecules & Magnetic Information Materials, Ministry of Education, School of Chemistry & Material Science, Shanxi Normal University, Linfen 041004, P. R. China.
Henan Joint International Research Laboratory of Nanocomposite Sensing Materials, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China.
出版信息
Chem Commun (Camb). 2021 Mar 9;57(20):2495-2498. doi: 10.1039/d0cc08218j.
A new one-dimensional (1D) face-shared hybrid lead bromide of (2cepiH)PbBr3, which exhibits intrinsic broadband yellow-light emission with a quantum yield of 16.8% outperforming all previously reported 1D face-shared hybrid metal halides, is obtained. The origin of broadband emission and the coexistence of free excitons and self-trapped excitons are deeply investigated by variable-temperature photoluminescence spectra. Our work paves the way to discovering more wonderful light-emitting materials.
制备出一种新型一维（1D）面共享杂化溴化铅（2cepiH）PbBr3，其具有本征宽带黄光发射，量子产率为16.8%，优于所有先前报道的一维面共享杂化金属卤化物。通过变温光致发光光谱深入研究了宽带发射的起源以及自由激子和自陷激子的共存情况。我们的工作为发现更多出色的发光材料铺平了道路。
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