Luo Zhishan, Liu Yejing, Liu Yulian, Li Chen, Li Yawen, Li Qian, Wei Yi, Zhang Liming, Xu Bin, Chang Xiaoyong, Quan Zewei
Department of Chemistry and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China.
Adv Mater. 2022 May;34(18):e2200607. doi: 10.1002/adma.202200607. Epub 2022 Mar 28.
0D hybrid metal halides (0D HMHs) are considered to be promising luminescent emitters. 0D HMHs commonly exhibit self-trapped exciton (STE) emissions originating from the inorganic metal halide anion units. Exploring and utilizing the emission features of the organic cation units in 0D HMHs is highly desired to enrich their optical properties as multifunctional luminescent materials. Here, tunable emissions from organic and inorganic units are successfully achieved in triphenylsulfonium (Ph S )-based 0D HMHs. Notably, integrated afterglow and STE emissions with adjustable intensities are obtained in (Ph S) Sn Te Cl (x = 0-1) via the delicate combination of [SnCl ] and [TeCl ] . Moreover, such a strategy can be readily extended to develop other HMH materials with intriguing optical properties. As a demonstration, 0D (Ph S) Zn Mn Cl (x = 0-1) are constructed to achieve integrated afterglow and Mn d-d emissions with high efficiency. Consequently, these novel 0D HMHs with colorful afterglow and STE emissions are applied in multiple anti-counterfeiting applications.
零维混合金属卤化物（0D HMHs）被认为是很有前景的发光体。0D HMHs通常表现出来自无机金属卤化物阴离子单元的自陷激子（STE）发射。为了丰富其作为多功能发光材料的光学性质，人们非常期望探索和利用0D HMHs中有机阳离子单元的发射特性。在此，基于三苯基锍（Ph₃S⁺）的0D HMHs成功实现了来自有机和无机单元的可调发射。值得注意的是，通过[SnCl₆]²⁻和[TeCl₆]²⁻的巧妙组合，在（Ph₃S）₂Sn₁₋ₓTeₓCl₆（x = 0 - 1）中获得了强度可调的集成余辉和STE发射。此外，这种策略可以很容易地扩展到开发其他具有有趣光学性质的HMH材料。作为一个例证，构建了零维（Ph₃S）₂Zn₁₋ₓMnₓCl₆（x = 0 - 1）以高效实现集成余辉和Mn d - d发射。因此，这些具有多彩余辉和STE发射的新型0D HMHs被应用于多种防伪应用中。
