为有机太阳能电池采用非化恒星形巨型三元电子接收器,效率超过19
Wen Zhou1, Jiabin Liu1, Jiaping Xie1
1College of Chemistry and Engineering/Film Energy Chemistry for Jiangxi Provincial Key Laboratory (FEC), Nanchang University, Nanchang, 330031, PR China.
Angewandte Chemie (International ed. in English)
|September 21, 2024
概括
新型非化星形剪裁器显著提高有机太阳能电池的性能. 这一突破提高了溶解性,抑制了聚合,从而提高了电力转换效率和商业应用的稳定性.
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:
- 使用巨型分子接受器 (GMA) 的有机太阳能电池 (OSC) 显示出高功率转换效率 (PCE) 和稳定性的承诺.
- 对GMA的挑战包括溶解性差,聚合性差,由于它们的大结合平面的低合成产量,阻碍了商业化.
研究的目的:
- 开发新的非化星形剪裁器 (3BTT6F和3BTT6Cl),以克服传统GMA的局限性.
- 为了提高溶解度,合成产量,并减少分子受体的聚合,以提高OSC性能.
主要方法:
- 采用非化骨策略,使用单键链接来创建3D架构.
- 合成的新型非化星形剪裁器 (3BTT6F和3BTT6Cl).
- 使用开发的trimers制造和特征二进制和三进制OSC设备.
主要成果:
- 非融合策略显著提高了溶解度和合成产量,同时抑制了过度的分子聚合.
- 基于3BTT6F的二元OSC实现了17.52%的高PCE,超过了完全化的trimers.
- 基于3BTT6F的三元OSC达到最高水平的PCE为19.26%.
- 星形配置增强了分子间相互作用,导致了卓越的操作稳定性.
结论:
- 非合的星形剪裁器为开发高效和稳定的有机太阳能电池提供了可行的途径.
- 这一战略有效地解决了可溶性和聚合性问题,为商业OSC开发铺平了道路.
- 增强的电荷转移和薄膜形成特性有助于设备的卓越性能.
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