High-efficiency non-fullerene organic solar cells enabled by a difluorobenzothiadiazole-based donor polymer combined with a properly matched small molecule acceptor

被引：380

作者：

Zhao, Jingbo ^{[1
]}

Li, Yunke ^{[1
]}

Lin, Haoran ^{[1
]}

Liu, Yuhang ^{[1
,3
,4
]}

Jiang, Kui ^{[1
,2
]}

Mu, Cheng ^{[1
]}

Ma, Tingxuan ^{[1
,3
,4
]}

Lai, Joshua Yuk Lin ^{[1
]}

Hu, Huawei ^{[1
,3
,4
]}

Yu, Demei ^{[3
,4
]}

Yan, He ^{[1
,2
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem, Clear Water Bay, Hong Kong, Peoples R China

[2] HKUST Shenzhen Res Inst, Shenzhen 518057, Peoples R China

[3] Xi An Jiao Tong Univ, Joint Sch Sustainable Dev, Xian 710049, Peoples R China

[4] Xi An Jiao Tong Univ, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2015年 / 8卷 / 02期

基金：

美国国家科学基金会;

关键词：

POWER CONVERSION EFFICIENCY; CHARGE RECOMBINATION; PROCESSING ADDITIVES; HIGH-PERFORMANCE; DIIMIDES; PHOTOVOLTAICS;

D O I：

10.1039/c4ee02990a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here we report high-performance small molecule acceptor (SMA)-based organic solar cells (OSCs) enabled by the combination of a difluorobenzothiadiazole donor polymer named PffBT4T-2DT and a SMA named SF-PDI2. It is found that SF-PDI2 matches particularly well with PffBT4T-2DT and non-fullerene OSCs with an impressive V-OC of 0.98 V, and a high power conversion efficiency of 6.3% is achieved. Our study shows that PffBT4T-2DT is a promising donor material for SMA-based OSCs, and the selection of a matching SMA is also important to achieve the best OSC performance.

引用

页码：520 / 525

页数：6

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