Efficiency Enhancement of Polymer Solar Cells Based on Poly(3-hexylthiophene)/Indene-C70 Bisadduct via Methylthiophene Additive

被引：70

作者：

Sun, Yeping ^{[1
,2
]}

Cui, Chaohua ^{[2
]}

Wang, Haiqiao ^{[1
]}

Li, Yongfang ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Minist Educ, Key Lab Carbon Fiber & Funct Polymers, Beijing 100029, Peoples R China

[2] Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

来源：

ADVANCED ENERGY MATERIALS | 2011年 / 1卷 / 06期

关键词：

polymer solar cells; 3-methylthiophene additive; poly(3-hexylthiophene); indene-C70; bisadduct; INTERPENETRATING NETWORK; PHOTOVOLTAIC PROPERTIES; CHARGE-TRANSPORT; PERFORMANCE; MORPHOLOGY; ACCEPTOR;

D O I：

10.1002/aenm.201100378

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：

Photovoltaic performance of polymer solar cells based on poly(3-hexylthiophene) (P3HT) as the donor and indene-C70 bisadduct (IC70BA) as the acceptor is improved by adding 3 vol% 3-methylthiophene (MT) or 3-hexylthiophene (HT) as processing additives. The results of UV-vis absorption spectroscopy, X-ray diffraction analysis and atomic force microscopy indicate that with the MT or HT processing additive, the active layer of the blend of P3HT/IC70BA showed strengthened absorbance, enhanced crystallinity and improved film morphology. The power conversion efficiency (PCE) of the PSCs was improved from 5.80% for the device without the additive to 6.35% for the device with HT additive and to 6.69% with MT additive. The PCE of 6.69% is the top value reported so far for the PSCs based on P3HT.

引用

页码：1058 / 1061

页数：4

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