In 2022,Ran, Qidi; Zhang, Yan; Yang, Jun; He, Rongxing; Zhou, Lei; Hu, Shanshan published an article in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices. The title of the article was 《White-light defect emission and enhanced photoluminescence efficiency in a 0D indium-based metal halide》.COA of Formula: Br3In The author mentioned the following in the article:
Low-dimensional ns2-metal halide compounds with confined structures and localized electronic states have received considerable attention due to their superior luminescence properties, while the intriguing photophys. dynamics of metal halides without ns2 electrons is still elusive and has yet to be studied. A novel In3+-based (C6H8N)6InBr9 single crystal (C6H8N = anilinium) that exhibits intrinsic white-light emission at room temperature was developed. Such white light stems from multiple defect states owing to the presence of Br vacancies, which however delivers a low luminescence quantum yield (PLQY) (2.72%) due to a severe thermal quenching effect. To improve the luminescence efficiency, the Sb3+ ion with a 5s2 lone pair was embedded into the lattice, which leads to broadband orange emission with a high PLQY of ≤71.84%. The enhanced PL efficiency results from efficient triplet self-trapped excitons (STEs) in the (SbBr6)3- octahedron and the energy transfer from defect states to STE states. This work not only sheds light on the mechanism of defect-related white-light emission, but provides a successful strategy for designing novel materials with excellent PL properties for versatile optical applications. In the experimental materials used by the author, we found Indium(III) bromide(cas: 13465-09-3COA of Formula: Br3In)
Indium(III) bromide(cas: 13465-09-3) is used in organic synthesis as a water tolerant Lewis acid. It efficiently catalyzes the three-component coupling of β-keto esters, aldehydes and urea (or thiourea) to afford the corresponding dihydropyrimidinones.COA of Formula: Br3In
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary