作者:Tian‐Jiao Wen、Zhi‐Xi Liu、Zeng Chen、Jiadong Zhou、Ziqiu Shen、Yiqun Xiao、Xinhui Lu、Zengqi Xie、Haiming Zhu、Chang‐Zhi Li、Hongzheng Chen
DOI:10.1002/anie.202101867
日期:2021.6
achieved in recent years, organic photovoltaics (OPVs) still need work to approach the delicate balance between efficiency, stability, and cost. Herein, two fully non-fused electron acceptors, PTB4F and PTB4Cl, are developed via a two-step synthesis from single aromatic units. The introduction of a two-dimensional chain and halogenated terminals for these non-fused acceptors plays a synergistic role
尽管近年来取得了令人瞩目的进步,但有机光伏(OPV)仍需要努力实现效率,稳定性和成本之间的微妙平衡。在本文中,通过两步合成由单个芳族单元开发了两个完全不熔融的电子受体PTB4F和PTB4Cl。为这些非融合受体引入二维链和卤化末端在优化其固体堆积和取向方面起着协同作用,从而促进了本体异质结共混物中延长的激子寿命和快速的电荷转移速率。结果,PTB4Cl与PBDB-TF聚合物共混后,单结OPV的功率转换效率为12.76%,是迄今为止报道的完全未融合的电子受体中的最高值。