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Fluorination-modulated end units for high-performance non-fullerene acceptors based organic solar cells

  • Yanna Sun (孙延娜)
  • Huan-Huan Gao (高欢欢)
  • Yuan-Qiu-Qiang Yi (易袁秋强)
  • Xiangjian Wan (万相见)
  • Huanran Feng (冯焕然)
  • Xin Ke (柯鑫)
  • Yamin Zhang (张雅敏)
  • Jing Yan (燕晶)
  • Chenxi Li (李晨曦)
  • Yongsheng Chen (陈永胜)Email author
Letters
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氟修饰端基非富勒烯受体高效率有机太阳能电池

摘要

本文设计合成了三个受体-给体-受体骨架的非富勒烯受体, 它们具有不同数目氟原子修饰的端基, 将其分别命名为OBTT-0F, OBTT-2F和OBTT-4F. 氟端基使得最低未占分子轨道下移, 光谱红 移, π-π堆叠和非富勒烯受体的结晶性增强. 通过与聚合物给体 PBDB-T共混, 基于OBTT-2F的分子同时获得了相对高的电流 (20.83 mA cm−2)和能量转换效率(12.36%). 该结果证明向端基上引 入氟原子是调控非富勒烯受体光电性能和光伏效率的简单有效的 方法.

Notes

Acknowledgements

This work was supported by the Ministry of Science and Technology (2016YFA0200200), the National Natural Science Foundation of China (91633301 and 51773095), the Natural Science Foundation of Tianjin City (17JCJQJC44500 and 17CZDJC31100) and 111 Project (B12015). This work is dedicated to the 100th anniversary of Nankai University.

Supplementary material

40843_2019_9415_MOESM1_ESM.pdf (619 kb)
Supplementary information

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Copyright information

© Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Yanna Sun (孙延娜)
    • 1
  • Huan-Huan Gao (高欢欢)
    • 1
  • Yuan-Qiu-Qiang Yi (易袁秋强)
    • 1
  • Xiangjian Wan (万相见)
    • 1
  • Huanran Feng (冯焕然)
    • 1
  • Xin Ke (柯鑫)
    • 1
  • Yamin Zhang (张雅敏)
    • 1
  • Jing Yan (燕晶)
    • 1
  • Chenxi Li (李晨曦)
    • 1
  • Yongsheng Chen (陈永胜)
    • 1
    Email author
  1. 1.The Key Laboratory of Functional Polymer Materials, State Key Laboratory and Institute of Elemento-Organic Chemistry, Centre of Nanoscale Science and Technology, College of ChemistryNankai UniversityTianjinChina

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