合成和光电子应用的dπ -pπ 结合聚合物与一个二金属芳香受体
Shiyan Chen1, Lingwei Feng2, Lixia Peng3
1Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
Angewandte Chemie (International ed. in English)
|June 13, 2023
概括
研究人员使用缺乏电子的构建块开发了有机太阳能电池的新型金属聚合物. 这些材料显著提高了光伏的性能,实现了高达18.28%的功率转换效率.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 聚合物化学 聚合物化学
背景情况:
- 推进n型聚合物半导体对于合聚合物开发至关重要.
- 缺乏电子的构件是设计有效的聚合物半导体的关键.
研究的目的:
- 设计和合成一种具有二金属芳香结构的新型强受体构件.
- 开发一种用于制造金属聚合物的双单体聚合方法.
- 研究这些金属聚合物的潜力,作为有机太阳能电池中电子传输层材料.
主要方法:
- 一个通过 π 结合桥连接的二金属芳香结构块的合成.
- 开发一种双单体聚合技术,将建材集成到聚合物链中.
- 使用核磁共振 (NMR) 和紫外线可见光谱 (UV-Vis) 进行模型寡合物和运动研究的表征.
主要成果:
- 成功合成了定义精确的模型寡合体,证实了聚合物结构.
- 动力学研究提供了对聚合机制的见解.
- 由此产生的金属聚合物表现出dπ -pπ的结合,显示出出色的电子传输特性.
- 使用这些金属聚合物制成的有机太阳能电池实现了高功率转换效率 (PCE) 18.28%的PM6:EH-HD-4F非富勒系统.
结论:
- 已经建立了构建具有多种功能组的金属芳香联聚合物的方便途径.
- 合成的金属聚合物显示出作为电子输送层材料的显著前景.
- 这项研究为高性能有机太阳能电池应用开辟了新的途径.
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