Small·· 17 小时前精选AI 评分62
喹喔啉连接单元缺电子调控使二聚受体有机太阳能电池效率超过20%
Dimeric Acceptors Enable over 20% Efficiency Organic Solar Cells via Electron‐Deficiency Engineering of Quinoxaline Linkers
AI 导读
研究设计并合成了WD1、WD2、WD4三种以喹喔啉为连接单元的二聚受体，通过在连接单元上引入4-甲氧基苯基、甲基和4-氟苯基系统调节其光电性质。其中缺电子程度最高的WD4（含6,7-二氟-2,3-双(4-氟苯基)喹喔啉连接单元）表现最优，PM6:WD4二元器件获得17.95%的PCE并具有良好稳定性，PM6:L8-BO:WD4三元器件PCE达到20.15%。
推荐理由
通过喹喔啉连接单元的缺电子取代调控，二聚受体在二元与三元器件中分别给出17.95%和20.15%的效率，并保持稳定性。
创新点
将喹喔啉骨架作为可调缺电子连接单元引入二聚受体，通过取代基精细调节电子离域程度，在提升效率的同时兼顾器件稳定性。
图表、补充材料与最终表述以原文为准。阅读原文
来源：Small · doi.org
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