Zero-dimensional organic-inorganic hybrid zinc halide with broadband yellow light emission

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 ZnBr 4 ( N -EPD = N -ethylpyridin...

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Veröffentlicht in:CrystEngComm 2023-01, Vol.25 (3), p.444-449
Hauptverfasser: Liu, Yu-Hang, Wang, Wen-Qi, Zhang, Bing-Lin, Wang, Yu-Jiao, Ren, Meng-Ping, Jing, Zhihong, Yue, Cheng-Yang
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Sprache:eng
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Zusammenfassung: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 ZnBr 4 ( N -EPD = N -ethylpyridinium) was prepared through a conventional solvothermal reaction method. The crystal structure of [ N -EPD] 2 ZnBr 4 consists of a discrete [ZnBr 4 ] 2− tetrahedron and organic [ N -EPD] cation. It is noteworthy that [ N -EPD] 2 ZnBr 4 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. [ N -EPD] 2 ZnBr 4 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.
ISSN:1466-8033
1466-8033
DOI:10.1039/d2ce01342h