Importance of varying electron-accepting moieties in regular conjugated terpolymers for use in polymer solar cells

被引：9
|
作者：
Kim, Hyung Jong [1 ]
Park, Gi Eun [1 ]
Lee, Dae Hee [1 ]
Cho, Min Ju [1 ]
Choi, Dong Hoon [1 ]
机构：
[1] Korea Univ, Res Inst Nat Sci, Dept Chem, 5 Anam Dong, Seoul 136701, South Korea
来源：
ORGANIC ELECTRONICS | 2016年 / 38卷
基金：
新加坡国家研究基金会;
关键词：
Polymer solar cells; Diketopyrrolopyrrole; Isoindigo; Thienoisoindigo; Terpolymer; POWER CONVERSION EFFICIENCY; EXTENDED DONOR UNITS; PHOTOVOLTAIC MATERIALS; ENHANCED PERFORMANCE; DIKETOPYRROLOPYRROLE; COPOLYMERS; BENZODITHIOPHENE; OPTIMIZATION; TRANSISTORS; ISOINDIGO;
D O I：
10.1016/j.orgel.2016.08.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Three A(1)-D-A(2)-D regular conjugated terpolymers containing diketopyrrolopyrrole, isoindigo, or thienoisoindigo moieties were synthesized. Each terpolymer with the combination of two different acceptors and thiophene as common donor displayed strong absorption from 500 nm to the near-IR region as well as different molecular energy levels. Among three terpolymers, bulk heterojunction polymer solar cell made of the terpolymer containing diketopyrrolopyrrole, isoindigo, and thiophene moieties and phenyl-C-71-butyric acid methyl ester showed the highest power conversion efficiency of 6.95% due to its appropriate internal morphology and the high open circuit voltage conferred by the relatively low-lying highest occupied molecular orbital level of the polymer. (C) 2016 Elsevier B.V. All rights reserved.
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页码：256 / 263
页数：8
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