Antithermal Quenching of Luminescence in Zero-Dimensional Hybrid Metal Halide Solids

• DOI: 10.1021/acs.jpclett.0c00293
• Publication Date: 2020-03-26T21:31:01Z
• Authors: Bin-Bin Zhang; Jia-Kai Chen; Ju-Ping Ma; Xiao-Fang Jia; Qing Zhao; Shao-Qiang Guo; Ya-Meng Chen; Qi Liu; Yoshihiro Kuroiwa; Chikako Moriyoshi; Junying Zhang; Hong-Tao Sun
• Keywords: Metal halides

Zero-dimensional (0D) hybrid metal halides have emerged as a new generation of luminescent phosphors owing to their high radiative recombination rates, which, akin three-dimensional cousins, commonly demonstrate thermal quenching luminescence. Here, we report on the finding antithermal luminescence in 0D halides. Using (C9NH20)2SnBr4 single crystals an example system, show that can A combination experimental characterizations and first-principles calculations suggests is associated with trap states introduced by structural defects (C9NH20)2SnBr4. Importantly, find not only limited but also exists other Our work highlights important role impacting photophysical properties may stimulate efforts explore exhibiting at higher temperatures.