来自混合合物单晶的圆极化发光
Jian Zhao1, Tongjin Zhang2, Xi-Yan Dong1,3
1College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , China.
Journal of the American Chemical Society
|September 19, 2019
概括
新的有机-无机杂交复合物[K(dibenzo-18-crown-6) ]2MnX4,表现出绿色光和光学波导特性. 这些材料首次在单晶中呈现圆极化发光.
科学领域:
- 材料科学
- 固态化学
- 光物理学
背景情况:
- 有机-无机混合复合物为先进的应用提供可调节的特性.
- 化物以其多样化的结构和光发光行为而闻名.
- 呈现圆极化发光的阿基拉材料非常受欢迎.
研究的目的:
- 通过[K ((dibenzo-18-crown-6) ]+阳离子和化物合成和表征新的有机-无机杂交复合物.
- 调查光物理特性,包括光和光波导的行为.
- 探索这些单晶中循环极化发光的潜力.
主要方法:
- 用化物 (MnCl2,MnBr2) 结晶化[K(dibenzo-18-crown-6) ]+离子.
- 单晶X射线衍射以确定晶体结构和空间组.
- 光发光光谱测量量子产量和分析辐射特性.
- 光学波导损失的测量.
主要成果:
- 已经成功合成了[K(dibenzo-18-crown-6) ]2MnX4 (X = Cl, Br) 的同结构单晶.
- 这些复合体表现出一维形态和绿色光,具有高量子产量.
- 观察到具有低损失系数的优异光学波导行为.
- 空间组Cc的阿基拉晶体表现出循环极化发光,这是由于racemic单元的非中心对称排列.
结论:
- 合成的[K ((dibenzo-18-crown-6) ]2MnX4复合物是光电子应用的有希望的材料.
- 在状单晶中观察圆极化发光为状光子学开辟了新的途径.
- 这些混合材料表现出光,光学波导和CPL特性的独特组合.
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