Li Mingze, Xia Zhiguo
The State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China.
Chem Soc Rev. 2021 Mar 1;50(4):2626-2662. doi: 10.1039/d0cs00779j.
Zero-dimensional (0D) all-inorganic/organic-inorganic metal halides, as emerging luminescent materials, have attracted unparalleled interest from versatile perspectives due to their unique crystallographic/electronic structures with isolated building units and fascinating optical characteristics. However, significant challenges still exist for 0D metal halides, including their chemical molecular design, photoluminescence (PL) mechanism, PL modification and applications. In this review, we summarize the 0D metal halides through the classification of all-inorganic and organic-inorganic hybrid metal halides, and further emphasize the unique role of B-site cations with different electronic configurations in the PL process. Furthermore, the PL mechanisms focusing on the self-trapped excitons (STEs) model and PL regulation engineering are examined to explore their extraordinary PL properties and further reveal new application prospects. This review aims to provide in-depth insight into the structure-luminescence-application relationship of 0D metal halides and pave the way for the realization of next-generation high-performance luminescent materials.
零维（0D）全无机/有机-无机金属卤化物作为新兴的发光材料，因其具有孤立结构单元的独特晶体学/电子结构和迷人的光学特性，已从多个角度吸引了前所未有的关注。然而，0D金属卤化物仍然存在重大挑战，包括其化学分子设计、光致发光（PL）机制、PL修饰及应用。在本综述中，我们通过对全无机和有机-无机杂化金属卤化物进行分类来总结0D金属卤化物，并进一步强调具有不同电子构型的B位阳离子在PL过程中的独特作用。此外，还研究了聚焦于自陷激子（STE）模型的PL机制和PL调控工程，以探索其非凡的PL特性，并进一步揭示新的应用前景。本综述旨在深入洞察0D金属卤化物的结构-发光-应用关系，为实现下一代高性能发光材料铺平道路。
