Zero-dimensional organic–inorganic hybrid zinc halide with broadband yellow light emission. Issue 3 (12th December 2022)

• Record Type: Journal Article
• Authors: Liu, Yu-Hang; Wang, Wen-Qi; Zhang, Bing-Lin; Wang, Yu-Jiao; Ren, Meng-Ping; Jing, Zhihong; Yue, Cheng-Yang
• Is Part Of: CrystEngComm. Volume 25:Issue 3(2023)
• Page Start: 444
• Page End: 449
• Publication Date: 2022-12-12
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/d2ce01342h
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : [ N -EPD]2 ZnBr4 produces strong yellow broadband luminescence with a promising quantum yield of 8.28%. This is the first report about yellow light emission in 0D hybrid zinc halides. Abstract : In recent years, low-dimensional organic–inorganic hybrid metal halides have attracted great attention in the field of solid-state optical materials due to their outstanding luminescence properties. Here, one new zero-dimensional (0D) hybrid zinc bromide [ N -EPD]2 ZnBr4 ( N -EPD = N -ethylpyridinium) was prepared through a conventional solvothermal reaction method. The crystal structure of [ N -EPD]2 ZnBr4 consists of a discrete [ZnBr4 ] 2− tetrahedron and organic [ N -EPD] cation. It is noteworthy that [ N -EPD]2 ZnBr4 displays strong yellow broadband luminescence with a promising photoluminescence quantum yield (PLQY) of 8.28%. Based on temperature-dependent, time-resolved spectroscopy characterization and theoretical studies, the broadband yellow emission can be attributed to radiative recombination of self-trapping excitons (STEs). To the best of our knowledge, this is the first report about yellow light emission in 0D hybrid zinc halides.