Highly efficient self-trapped exciton emission in a one-dimensional face-shared hybrid lead bromide

Zhikai Qi; Yali Chen; Yao Guo; Xuelian Yang; Huizhi Gao; Guojun Zhou; Shi-Li Li; Xian-Ming Zhang

doi:10.1039/d0cc08218j

Highly efficient self-trapped exciton emission in a one-dimensional face-shared hybrid lead bromide

Chem Commun (Camb). 2021 Mar 9;57(20):2495-2498. doi: 10.1039/d0cc08218j.

Authors

Zhikai Qi¹, Yali Chen¹, Yao Guo², Xuelian Yang¹, Huizhi Gao¹, Guojun Zhou¹, Shi-Li Li¹, Xian-Ming Zhang³

Affiliations

¹ Key Laboratory of Magnetic Molecules & Magnetic Information Materials, Ministry of Education, School of Chemistry & Material Science, Shanxi Normal University, Linfen 041004, P. R. China. [email protected].
² Henan Joint International Research Laboratory of Nanocomposite Sensing Materials, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, P. R. China.
³ Key Laboratory of Magnetic Molecules & Magnetic Information Materials, Ministry of Education, School of Chemistry & Material Science, Shanxi Normal University, Linfen 041004, P. R. China. [email protected] and School of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.

PMID: 33585850
DOI: 10.1039/d0cc08218j

Abstract

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.