近日，中山大学欧阳钢锋团队实现了具有双波段本征白光发射特性的无铅有机卤化锑直接用于暖色白光发光二极管（WLED）。2025年7月28日，《结构化学》杂志发表了这一成果。

具有白光发射的有机金属卤化物在固态照明和显示领域显示出重要的应用前景，但其结构设计和合成仍然是一个巨大的挑战。应用功能单元的材料设计理念制备了一种零维（0D）有机卤化锑（1-BMP）₅(SbCl₅)₂SbCl₄，该材料具有无机单元和有机单元两个发光中心，分别发出约670 nm的红光和约508 nm的青光，组合形成白光。

基于光致发光（PL）、时间分辨PL分析和密度泛函理论（DFT）计算表明，红色发射来自无机单元[SbCl₅]^2-相关的STEs，青色发射来自有机阳离子1-BMP⁺的荧光。该研究为开发低成本、环保的单组分固态发光二极管白光荧光粉提供了新的方法和思路。

附：英文原文

Title: Lead-free organic antimony halide with dual-band intrinsic white light emission for warm WLED directly

Author: anonymous

Issue&Volume: 2025-07-28

Abstract: Organic metal halides with white-light emissions have shown important application prospects in the field of solid-state lighting and displays, but their structural design ad synthesis remains a huge challenge. Here, the material design concept of functional units has been applied to prepare a zero-dimensional (0D) organic antimony halide (1-BMP)5(SbCl5)2SbCl4 with two luminescent centers from the inorganic units and the organic units, emitting red about 670 nm and cyan about 508 nm respectively, combined to form white light. Based on the photoluminescence (PL), the time-resolved PL analysis and density functional theory (DFT) calculation, it is shown that the red emission comes from STEs related to inorganic units [SbCl5]2-, and the cyan emission comes from the fluorescence of organic cations 1-BMP+. This work provides new methods and ideas for the development of low-cost and ecofriendly white emission phosphors for single-component solid-states WLEDs.

DOI: 10.1016/j.cjsc.2025.100678

Source: http://cjsc.ac.cn/cms/issues/846