Reduced Intramolecular Twisting Improves the Performance of 3D Molecular Acceptors in Non-Fullerene Organic Solar Cells

被引：159
作者：
Lin, Haoran [1 ,2 ,3 ]
Chen, Shangshang [1 ,2 ,3 ]
Hu, Huawei [2 ,3 ]
Zhang, Lu [4 ,5 ,6 ]
Ma, Tingxuan [2 ,3 ]
Lai, Joshua Yuk Lin [2 ,3 ]
Li, Zhengke [1 ,2 ,3 ]
Qin, Anjun [7 ]
Huang, Xuhui [4 ,5 ,6 ]
Tang, Benzhong [2 ,3 ,7 ]
Yan, He [1 ,2 ,3 ,7 ]
机构：
[1] Hong Kong Univ Sci & Technol, Shenzhen Res Inst, 9 Yuexing 1st RD,Hitech Pk, Shenzhen 518057, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Chem, Hong Kong 999077, Hong Kong, Peoples R China
[3] Hong Kong Univ Sci & Technol, Energy Inst, Hong Kong 999077, Hong Kong, Peoples R China
[4] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon 999077, Hong Kong, Peoples R China
[5] Hong Kong Univ Sci & Technol, State Key Lab Mol Neurosci, Sch Sci, Ctr Syst Biol & Human Hlth, Kowloon 999077, Hong Kong, Peoples R China
[6] Hong Kong Univ Sci & Technol, IAS, Kowloon 999077, Hong Kong, Peoples R China
[7] South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
来源：
ADVANCED MATERIALS | 2016年 / 28卷 / 38期
基金：
美国国家科学基金会;
关键词：
high mobility; reduced intramolecular twisting; small-molecular acceptors; structural-property relationships; twisted 3D structures; NONPLANAR PERYLENE DIIMIDES; ELECTRON-ACCEPTORS; HIGH-EFFICIENCY; NONFULLERENE ACCEPTORS; POLYMER; PHOTOVOLTAICS; AGGREGATION; ABSORPTION; SURFACE;
D O I：
10.1002/adma.201600997
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A small-molecular acceptor, tetraphenyl-pyrazine-perylenediimide tetramer (TPPzPDI 4), 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-PDI 4 exhibits the highest aggregation tendency and electron mobility, and therefore achieves a highest power conversion efficiency of 7.1%.
引用
收藏
页码：8546 / 8551
页数：6
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