用于将功能分子单元的二维组件定制成有机薄膜的超分子支架
Franco King-Chi Leung1,2,3, Fumitaka Ishiwari1,3, Takashi Kajitani1,3
1Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology , 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
Journal of the American Chemical Society
|August 24, 2016
概括
研究人员开发了三脚式三基架,在固体基板上创建高度定向的多层二维 (2D) 分子组件. 这种超分子方法可以精确地安排像C60这样的功能单元,用于先进的有机薄膜技术.
科学领域:
- 超分子化学
- 材料科学
- 有机电子产品
背景情况:
- 对有机薄膜技术来说,控制分子组合和表面的方向至关重要.
- 三脚三基结构为有序分子排列提供了潜在的支架.
研究的目的:
- 开发使用三脚三基的超分子支架,在固体基板上创建高度定向的多层二维分子组件.
- 用这种三基架研究功能分子单元的组装,例如C60.
- 评估由此产生的薄膜的电荷传输特性.
主要方法:
- 具有功能组的桥头替代三脚三的合成.
- 在固体基板上自组装三基衍生物.
- 用C60分子对三基架进行功能化.
- 使用像X射线衍射 (隐含) 这样的技术对组装结构进行表征.
- 使用闪光光学解析时间微波导电性 (FP-TRMC) 测量电荷传输特性.
主要成果:
- 与基板表面平行形成一个明确的 "2D 六角形 + 1D 片状"结构.
- 像C60这样的大单元的功能化并没有妨碍三基架的组装特性.
- 已成功获得C60单元的多层二维组件.
- C60薄膜表现出高度异构的电荷传输特性.
结论:
- 桥头替代的三脚三基作为一个多功能超分子支架来定制二维分子组件.
- 这种方法可以创建具有异型分子功能的高度定向的薄膜.
- 这些发现为先进的有机薄膜设备铺平了道路,
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