A Soluble High Molecular Weight Copolymer of Benzo[1,2-b:4,5-b′]dithiophene and Benzoxadiazole for Efficient Organic Photovoltaics

被引：50

作者：

Nie, Wanyi ^{[1
,2
]}

MacNeill, Christopher M. ^{[3
]}

Li, Yuan ^{[1
,2
]}

Noftle, Ronald E. ^{[3
]}

Carroll, David L. ^{[1
,2
]}

Coffin, Robert. C. ^{[1
,2
]}

机构：

[1] Wake Forest Univ, Ctr Nanotechnol & Mol Mat, Winston Salem, NC 27109 USA

[2] Wake Forest Univ, Dept Phys, Winston Salem, NC 27109 USA

[3] Wake Forest Univ, Dept Chem, Winston Salem, NC 27109 USA

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2011年 / 32卷 / 15期

关键词：

conjugated polymers; photovoltaics; synthesis; POLYMER SOLAR-CELLS; BANDGAP; PERFORMANCE; MORPHOLOGY;

D O I：

10.1002/marc.201100161

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The synthesis and characterization of a soluble high molecular weight copolymer based on 4,8-bis(1-pentylhexyloxy)benzo[1,2-b:4,5-b']dithiophene and 2,1,3-benzoxadiazole is presented. High efficiency organic photovoltaic (OPV) devices comprised of this polymer and phenyl-C-71-butyric acid methyl ester (PC71BM) were fabricated by additive processing with 1-chloronapthalene (CN). When the active layer is cast from pristine chlorobenzene (CB), power conversion efficiencies (PCEs) average 1.41%. Our best condition - using 2% chloronapthalene as a solvent additive in CB - results in an average PCE of 5.65%, with a champion efficiency of 6.05%.

引用

页码：1163 / 1168

页数：6

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