含有三甲基硫酸的环酸盐的晶体结构和发光特性
Andrey A Petrov1,2, Luyi Chen1, Mingming Li1
1Faculty of Materials Science, Shenzhen MSU-BIT University, 518172 Shenzhen, China. basolon@gmail.com.
Dalton transactions (Cambridge, England : 2003)
|May 19, 2025
概括
三甲基硫 halocuprates 呈现独特的晶体结构和发光. (TMS) Cu2Br3显示了新的温度依赖的双重发射,提供了对混合环酸光学特性的见解.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 光物理学的光学物理学
背景情况:
- 混合环酸盐是光电子应用的有希望的材料.
- 了解结构属性关系对于设计新材料至关重要.
- 基于三甲基硫 (TMS) 的化合物具有可调节的特性.
研究的目的:
- 为了合成和描述新的三甲基硫 halocuprates.
- 为了研究它们的晶体结构,热稳定性和发光特性.
- 为了阐明结构与属性关系,控制它们的光发光.
主要方法:
- 单晶X射线衍射用于结构确定.
- 用于热稳定性评估的热重力测量分析.
- 光发光谱学用于光学属性分析.
- 密度函数理论 (DFT) 计算用于电子结构分析.
主要成果:
- 合成了三种三甲基硫环酸盐: (TMS) Cu2I3, (TMS) Cu2Br3和 (TMS) 2CuBr3.
- (TMS) Cu2I3和 (TMS) Cu2Br3具有同结构的双链结构,而 (TMS) 2CuBr3包含孤立的三角形单元.
- 所有化合物在低温下都表现出直接带隙和光发光.
- (TMS) Cu2Br3表现出温度依赖的双重发射,这在这种类型的材料中是一种新的观察.
结论:
- 晶体结构显著影响三甲基硫 halocuprates 的发光特性.
- 在 (TMS) Cu2Br3 中的双发射为调整光电子行为提供了新的途径.
- 这项研究确定了ACu2X3型环酸盐的关键结构-性质相关性.
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