具有微调基连接位的三聚体受体,可实现20.23%的效率和稳定的有机太阳能电池
Tengfei Li1, Wenjing Zhou2, Hongxiang Li3
1State Key Laboratory For Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China.
Angewandte Chemie (International ed. in English)
|February 6, 2026
概括
研究人员开发了用于有机太阳能电池 (OSC) 的新型三元巨分子受体 (GMA). 机翼位置连接的3Y-Wing GMA显著提高了OSC中的功率转换效率 (PCE) 和设备稳定性.
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:
- 巨分子受体 (GMA) 提高有机太阳能电池 (OSC) 的功率转换效率 (PCE) 和稳定性.
- 大多数高性能GMA是二度的,继承了它们的单体前体的特性.
研究的目的:
- 开发和研究具有不同连接位点的新型三元体GMA,以微调光电子特性.
- 评估使用这些新的三基GMA的OSC的性能和稳定性.
主要方法:
- 合成了四个三元组GMA (3Y站点系列) 具有相同的链接器但不同的链接策略 (翼站点,终端站点,混合).
- 在二元和三元混合配置中使用这些GMA制造和特征有机太阳能电池.
- 评估设备性能 (PCE) 和稳定性 (光,热,存储).
主要成果:
- 翼部位连接的3Y-Wing表现出优越的平面性,更广泛的吸收,增强的结晶性和更好的分子包装.
- 二进制 (PM6:3Y-Wing) 和三进制 (PM6:L8-BO:3Y-Wing) 设备实现了冠军PCE分别为15.0%和19.1%.
- 在D18:L8-BO系统中的三元器件达到创纪录的20.23%的PCE对于三元体GMA,稳定性得到改善.
结论:
- 翼部位连接的三元体3Y-Wing是一种非常有前途的GMA,用于在有机太阳能电池中实现高PCE和稳定性.
- 通过链接部位修改优化分子设计对于提高GMA性能至关重要.
- 开发的3Y-Wing在效率和耐久性方面提供了优越的平衡,与其他三元同行相比.
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