Reduced Intramolecular Twisting Improves the Performance of 3D Molecular Acceptors in Non-Fullerene Organic Solar Cells
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- 作者：Haoran Lin ; Shangshang Chen ; Huawei Hu ; Lu Zhang ; Tingxuan Ma ; Joshua Yuk Lin Lai ; Zhengke Li ; Anjun Qin ; Xuhui Huang ; Benzhong Tang and He Yan
- 刊名：Advanced Materials
- 出版年：2016
- 出版时间：October 12, 2016
- 年：2016
- 卷：28
- 期：38
- 页码：8546-8551
- 全文大小：809K
- ISSN：1521-4095
文摘
A small-molecular acceptor, tetraphenylpyrazine-perylenediimide tetramer (TPPz-PDI4), which has a reduced extent of intramolecular twisting compared to two other small-molecular acceptors is designed. Benefiting from the lowest extent of intramolecular twisting, TPPz-PDI4 exhibits the highest aggregation tendency and electron mobility, and therefore achieves a highest power conversion efficiency of 7.1%.