向高度晶体非烯受体的融合战略使有机太阳能电池中的同时增强的电流和电压成为可能
Zhenye Li1, Rujin Zhou1, Huanyan Jiang1
1School of Electrical Engineering & College of Mechanical Engineering, University of South China, Hengyang, China.
Advanced materials (Deerfield Beach, Fla.)
|January 28, 2026
概括
研究人员使用分子聚变策略开发了一种新的有机太阳能电池 (OSC) 材料BrTh-2Cl. 这增强了分子包装和膜排序,显著提高了有机太阳能电池的功率转换效率 (PCE).
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 太阳能光伏发电是如何实现的
背景情况:
- 有机太阳能电池 (OSCs) 是有前途的,但由于优化光活性材料分子包装的挑战,它们面临性能限制.
- 虽然A-D-A'-D-A接受器通过3D网络包装提高了效率,但提高晶度而不会造成有害的过度聚合的方法是有限的.
研究的目的:
- 引入一种新的非富勒受体 (NFA),BrTh-2Cl,旨在优化OSC中的分子包装和增强晶体性.
- 调查使用特定终端组的分子聚变战略对OSC性能的影响.
主要方法:
- 通过整合化-烯基单元和化基组,合成了一种新的NFA,BrTh-2Cl.
- 将BrTh-2Cl纳入D18-Cl:L8-BO主体混合物,用于OSC制造.
- 分析了片的排序,电子的移动性和光学特性.
主要成果:
- BrTh-2Cl表现出调制的分子包装,增强的薄膜排序和改善的电子流动性.
- 新的NFA表现出蓝移吸收,补充了L8-BO光收获.
- 采用BrTh-2Cl的OSC实现了功率转换效率 (PCE) 的20.82% (认证的20.34%),从19.03%增加.
结论:
- 分子聚变策略有效地改进了分子包装,并抑制了NFAs中的过度聚合.
- BrTh-2Cl通过改善电流和电压参数来提高OSC性能,从而导致更高的PCE.
- 这种方法为推进高性能有机太阳能电池技术提供了可行的途径.
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