Unveiling the Antithermal Quenching Behavior in 0D Inorganic Metal Halide CsInCl(HO) Mediated by Upconversion Emission.

Inorganic metal halides (IMHs) often suffer from severe fluorescence thermal quenching, limiting their application at elevated temperatures. Therefore, the exploration of IMHs exhibiting antithermal quenching (ATQ) behavior is of great importance. In this study, we developed a green synthetic route using a solvent evaporation method to successfully synthesize the 0D IMHs CsInCl(HO).