Silaindacenodithiophene-Based Low Band Gap Polymers - The Effect of Fluorine Substitution on Device Performances and Film Morphologies

被引：176

作者：

Schroeder, Bob C. ^{[1
,2
]}

Huang, Zhenggang ^{[1
,2
]}

Ashraf, Raja Shahid ^{[1
,2
]}

Smith, Jeremy ^{[2
,3
]}

D'Angelo, Pasquale ^{[2
,3
]}

Watkins, Scott E. ^{[4
]}

Anthopoulos, Thomas D. ^{[2
,3
]}

Durrant, James R. ^{[1
,2
]}

McCulloch, Iain ^{[1
,2
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

[2] Univ London Imperial Coll Sci Technol & Med, Ctr Plast Elect, London SW7 2AZ, England

[3] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England

[4] CSIRO Mat Sci & Engn, Melbourne, Vic 3169, Australia

来源：

ADVANCED FUNCTIONAL MATERIALS | 2012年 / 22卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

silaindacenodithiophene; hole mobility; solar cell; fluorine; conjugated polymers; SOLAR-CELLS; INDACENODITHIOPHENE; COPOLYMERS; BENZOTHIADIAZOLE; THIOPHENE; MOBILITY; VOLTAGE; DESIGN; CHAIN;

D O I：

10.1002/adfm.201102941

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Silaindacenodithiophene is copolymerized with benzo[c][1,2,5]thiadiazole (BT) and 4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (DTBT), respectively their fluorinated counter parts 5,6-difluorobenzo[c][1,2,5]thiadiazole (2FBT) and 5,6-difluoro-4,7-di(thiophen-2-yl) benzo[c][1,2,5]thiadiazole (2FDTBT). The influence of the thienyl spacers and fluorine atoms on molecular packing and active layer morphology is investigated with regard to device performances. bulk heterojunction (BHJ) solar cells based on silaindacenodithiophene donor-acceptor polymers achieved PCE's of 4.5% and hole mobilities of as high as 0.28 cm2/(V s) are achieved in an organic field-effect transistor (OFET).

引用

页码：1663 / 1670

页数：8

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