Low Energetic Disorder in Small-Molecule Non-Fullerene Electron Acceptors

被引：28
|
作者：
Kupgan, Grit [1 ]
Chen, Xian-Kai [1 ]
Bredas, Jean-Luc [1 ]
机构：
[1] Georgia Inst Technol, Sch Chem & Biochem, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA
来源：
ACS MATERIALS LETTERS | 2019年 / 1卷 / 03期
关键词：
CARRIERS;
D O I：
10.1021/acsmaterialslett.9b00248
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The energetic disorder in representative small-molecule non-fullerene electron acceptors (SM-NFAs) exploited in high-efficiency organic solar cells, is quantified via the combination of molecular dynamics simulations and long-range corrected density functional theory calculations. Our results underline that, with respect to the common fullerene acceptor PC71BM, the total energetic disorder related to these SM-NFAs is reduced by as much as one-third. These results help rationalize the origin of the low voltage losses measured in efficient SM-NFA-based organic solar cells.
引用
收藏
页码：350 / 353
页数：7
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