Organic-inorganic metal halides (OIMHs) have attracted great attention for white light emission and also exhibited structural transformation-induced luminescence switching for encryption. However, it is still challenging to explore Sb-based halides for single-component white light-emitting diodes (WLEDs) and to show fast phase transitions for anticounterfeiting. Herein, through unveiling the full potential of organic components, three Sb-based halide hybrids (TPP-HBtrz)SbCl₅ ([TPP-Btrz]Cl = [(1H-Benzotriazol-1-yl)methyl]triphenylphosphonium chloride), (TPP-Btrz)₂Sb₂Cl₈, and (TPP-HBtrz)SbBr₅ were rapidly prepared. (TPP-HBtrz)SbCl₅ exhibits white light emission benefiting from the combination of organic cation and self-trapped exciton (STE) emission of [SbCl₅]^2-. The WLED shows white light emission with CIE coordinates of (0.32, 0.34), a correlated color temperature (CCT) of 6130 K, and a color-rendering index (CRI) of 86. Moreover, the fast structural transformations among them are achieved when stimulated by ethanol or HCl solutions, leading to a multilevel encryption.

有机-无机金属卤化物（OIMHs）因其白光发射而备受关注，并且通过结构转变实现了发光切换用于加密。然而，探索基于锑的卤化物以实现单组分白光发射二极管（WLED）并展示快速相变以进行防伪仍然具有挑战性。在此研究中，通过揭示有机成分的全部潜力，迅速制备了三种基于锑的卤化物混合物（TPP-HBtrz）SbCl₅，(TPP-Btrz)₂Sb₂Cl₈ 和 (TPP-HBtrz)SbBr₅。（TPP-HBtrz）SbCl₅ 展现出白光发射，这得益于有机阳离子与[SbCl₅]^2- 自陷激子（STE）发射的结合。该WLED表现出CIE坐标为(0.32, 0.34)、相关色温(CCT)为6130 K和显色指数(CRI)为86的白光发射。此外，当受到乙醇或HCl溶液刺激时，它们之间实现了快速结构转换，从而实现多级加密。