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来自单个扭曲双极聚合物微球的圆形极化发光的坚固角异向性

Osamu Oki¹, Chidambar Kulkarni^2,3, Hiroshi Yamagishi¹

¹Department of Materials Science, Faculty of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.

Journal of the American Chemical Society

|June 4, 2021

概括

研究人员展示了性聚合物形成具有独特内部结构的微球. 这些微球表现出方向圆极化发光 (CPL),为先进的光学设备铺平了道路.

科学领域:

整形眼镜光谱
超分子化学
材料科学

背景情况:

奇拉分子发出圆极化发光 (CPL).
随着排放方向的变化而变异的异位CPL在理论上是预测的,但在单个分子和组件上是难以捉摸的.
由于缺乏演示,在光学和合传感方面的潜在应用仍未得到充分探索.

研究的目的:

通过单个自组合的性分子结构来证明和描述角异性CPL.
调查分子自组,内部结构和手术特征之间的关系.
探索这些材料在先进的光学和可视化设备中的潜力.

主要方法:

合成具有性侧链的合聚合物.
通过液相分离和胆固醇液晶形成,自组装成固体微球.
在环境条件下单个微球的微处理.
测量角分辨率的圆极化发光 (CPL) 和双折射.

主要成果:

自组装成固体微球的状聚合物.
微球呈现出显著的CPL,其发光异质因子 (g_lum) 在分散中高达0.23.
单个微球在双折射和CPL中都显示出明显的角异性 (在赤道平面上g_lum高达~0.5).
观察到的赤道CPL是极地CPL的2.5倍.

结论:

从自组装的性聚合物微球中证明了第一个单分子级别的异构性CPL.
建立了微球的独特扭曲内部结构与它们的异构视觉反应之间的联系.
突出了这些强大,光学异型微球的潜力,用于下一代微光发射器和基本的光-物质相互作用研究.

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