高光伏效率合共聚物的无锡直接C-H合聚合
Alexander S Dudnik1, Thomas J Aldrich1, Nicholas D Eastham1,2
1Department of Chemistry and the Materials Research Center, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States.
Journal of the American Chemical Society
|December 10, 2016
概括
一种新的直接C-H合聚合 (DARP) 方法可可持续合成高性能光伏共聚物. 这种环保的方法避免了有毒的化合物,
科学领域:
- 材料科学
- 聚合物化学
- 有机电子
背景情况:
- 传统的光伏共聚物合成依赖于静态聚凝,其中使用有毒的有机蛋白化合物.
- 需要可持续和环保的方法来生产用于太阳能电池应用的高性能π合聚合物.
研究的目的:
- 开发和展示一种用于合成光伏共聚物的新型区域选择性直接C-H聚合 (DARP) 方法.
- 将DARP衍生的共聚物与通过传统的Stille聚凝合成的共聚物进行比较.
主要方法:
- 使用低催化剂负载 (Pd2 ((dba) 3·CHCl3, P ((2-MeOPh)) 的碳酸添加剂和2-甲基四氨酸溶剂进行直接C-H化聚合 (DARP).
- 高产量和分子质量的代表性光伏共聚物的合成.
- 对DARP和Stille衍生的共聚物及其烯混合物的光学,NMR,电化学,微结构和形态特性进行表征.
主要成果:
- DARP协议成功合成了具有优异产量和高分子质量的光伏共聚物.
- 从DARP衍生出的共聚物表现出与Stille衍生品几乎相同的化学,光学和电化学特性,没有显著的结构缺陷.
- 来自DARP和Stille共聚物的富勒烯混合膜显示了无法区分的微观结构,形态和电荷传输特征.
- 使用DARP衍生的共聚物制造的聚合物太阳能电池实现了与Stille衍生的材料相匹敌或超过的性能,PBDTT-FTTE的功率转换效率达到创纪录的8.4%.
结论:
- DARP方法为生产高性能光伏共聚物提供了一个可持续的,环保的,高效的替代方案.
- 通过DARP合成的共聚物在结构和功能上相当于传统方法制成的共聚物,使得太阳能电池具有高性能.
- 这项工作使得DARP成为一种可行且有前途的技术,用于可扩展和可持续生产先进的有机电子材料.
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