Synthesis of Copolymers Based on Thiazolothiazole and Their Applications in Polymer Solar Cells

被引：66

作者：

Shi, Qinqin ^{[2
]}

Fan, Haijun ^{[2
]}

Liu, Yao ^{[2
]}

Hu, Wenping

Li, Yongfang

Zhan, Xiaowei ^{[1
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 39期

基金：

中国国家自然科学基金;

关键词：

FIELD-EFFECT TRANSISTORS; PI-CONJUGATED COPOLYMERS; LOW-BANDGAP POLYMER; PHOTOVOLTAIC PROPERTIES; ORGANIC PHOTOVOLTAICS; TRIFLUOROMETHYLPHENYL GROUPS; PERFORMANCE; ELECTRON; BITHIAZOLE; EFFICIENCY;

D O I：

10.1021/jp106319x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two conjugated alternating copolymers of thiazolothiazole with benzodithiophene (P1) or bithiazole (P2) were synthesized by a palladium(0)-catalyzed Stille coupling reaction. The thermal, electrochemical, optical, charge transport, and photovoltaic properties of these copolymers were examined. Compared with P1, P2 exhibits red shifted absorption, a lower band gap, and a lower HOMO level. The field-effect hole mobility of P1 is as high as 2.8 x 10(-3) cm(2) V-1 s(-1), which is I order of magnitude higher than that of P2. Polymer solar cells were fabricated based on the blend of the polymers and methanofullerene[6,6]-phenyl C61-butyric acid methyl ester (PC61BM). The PSC based on P1:PC61BM (1:2, w/w) exhibits a power conversion efficiency of 2.72% under AM 1.5, 100 mW cm(-2), higher than that reported for the thiazolothiazole-based polymers in the literature.

引用

页码：16843 / 16848

页数：6

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