在非融合环电子接收器中,以分子内非共价相互作用为驱动的同/反合规调节
Sixuan Wang1, Siying Wang1, Rui Zeng2
1College of Materials Science and Opto-Electronic Technology, Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing, 101408, China.
研究人员通过使用S···F相互作用控制分子构型来设计非化环电子受体 (NFREAs). 这导致有机太阳能电池性能提高,展示了新的设计策略.
科学领域:
- 有机电子学有机电子学
- 材料科学 是一种材料科学.
- 超分子化学 超分子化学
背景情况:
- 分子构造对于有机物质的特性至关重要.
- 在非化环电子受体 (NFREAs) 中,精确控制对形状的控制是具有挑战性的.
- 调节同步和反变形偏好是优化NFREAs的关键.
研究的目的:
- 通过构造导向设计来证明NFREA的精确工程.
- 研究同/反合规偏好对分子和器件特性的影响.
- 为开发高性能有机太阳能电池提供指导方针.
主要方法:
- 利用分子内非对应性S···F相互作用,在NFREAs中实现合成到反对应性转换.
- 系统地调查形状偏好如何影响平面性,刚性,自组装和电荷传输.
- 有机太阳能电池的制造和表征使用同步和反相符的NFREAs.
主要成果:
- 与同步构造相比,TT-F的反构造 (反-TT-F) 呈现出增强的结晶性,降低的重组能量和更好的电荷载体移动性.
- 基于反TT-F的二进制和三进制有机太阳能电池实现了高功率转换效率,分别为15.08%和19.88%.
- 符合性调节显著影响分子平面性,刚性和自我组装.
结论:
- 内部分子非对应性S···F相互作用为控制NFREA形态提供了一个强大的策略.
- 在这些NFREA中,对充电传输和设备性能而言,反构造优越.
- 合规工程为设计高性能有机电子材料和设备提供了一个新的维度.
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