Dipole Moment Modulation of Terminal Groups Enables Asymmetric Acceptors Featuring Medium Bandgap for Efficient and Stable Ternary Organic Solar Cells,Angewandte Chemie International Edition

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Dipole Moment Modulation of Terminal Groups Enables Asymmetric Acceptors Featuring Medium Bandgap for Efficient and Stable Ternary Organic Solar Cells
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2024-09-08 , DOI: 10.1002/anie.202415332
Bosen Zou ₁ , Anhai Liang ₂ , Pengbo Ding ₁ , Jia Yao ₁ , Xianghao Zeng ₁ , Hongxiang Li ₃ , Ruijie Ma ₄ , Chunliang Li ₁ , Weiwei Wu ₁ , Dezhang Chen ₁ , Memoona Qammar ₁ , Han Yu ₁ , Jicheng Yi ₁ , Liang Guo ₅ , Sai Ho Pun ₁ , Jonathan E Halpert ₁ , Gang Li ₄ , Zhipeng Kan ₂ , He Yan ₆

Affiliation

Herein we present a novel design of Y-series acceptors by strategically introducing designed terminal groups that modulate dipole moments and intramolecular charge transfer (ICT). By incorporating a methoxy group and a halogen atom at specific positions of the terminal groups results in asymmetric acceptors with attenuated ICT effects and broader band gaps. The optimized ternary devices exhibit a remarkable power conversion efficiency of 19.34 %.

中文翻译：

末端基团的偶极矩调制使具有中等带隙的不对称受体成为可能，从而实现高效稳定的三元有机太阳能电池

在本文中，我们通过战略性地引入调节偶极矩和分子内电荷转移（ICT）的设计末端基团，提出了一种新颖的 Y 系列受体设计。通过在末端基团的特定位置掺入甲氧基和卤素原子，可以产生不对称的受体，ICT 效应减弱，带隙更宽。优化的三元器件表现出 19.34% 的显着功率转换效率。

更新日期：2024-09-08

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