终端组的双极时刻调制使得具有中等带隙的不对称接收器成为有效和稳定的三极有机太阳能电池
Bosen Zou1, Anhai Liang2, Pengbo Ding3,4
1Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, 999077, Hong Kong, China.
Angewandte Chemie (International ed. in English)
|September 8, 2024
概括
研究人员使用新型终端组开发了用于有机太阳能电池 (OSC) 的新型Y系列受体. 这种设计提高了开放电路的电压和效率,为高性能三元OSC提供了有前途的第三个组件.
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:
- 传统的侧链工程限制了Y系列接受器的中频段间隙.
- 开发高效的受体对于提高有机太阳能电池 (OSC) 性能至关重要.
研究的目的:
- 为中频段间隙Y系列接收器设计新型终端组.
- 提高OSC的开放电路电压 (Voc) 和功率转换效率 (PCE).
- 为三元OSCs创建一个合适的第三个组件,以优化形态.
主要方法:
- 电子捐赠的甲氧基和电子取消的基组在融合终端单元上的战略整合.
- 不对称受体BTP-2FClO和BTP-2FBrO的合成.
- 二元和三元有机太阳能电池的制造和表征.
主要成果:
- 新的终端组设计调节了双极矩和电子密度,扩大了带间隙.
- 在二进制设备中的不对称Y系列接受器中,BTP-2FClO和BTP-2FBrO实现了最高的Voc (0.96V).
- BTP-2FClO和BTP-2FBrO显示出合适的聚合和结晶性,可作为第三个组件使用.
- 使用BTP-2FClO优化的三元OSC实现了PCE的19.34%.
结论:
- 新型终端组设计对于操纵分子性质和增强受体性能至关重要.
- 开发的受体BTP-2FClO和BTP-2FBrO代表了Y系列小分子受体的重大进步.
- 这些受体作为高效的第三组件,提高三元OSC的性能.
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