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

页码：8546 / 8551

页数：6

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