Synthesis, Characterization, and Photovoltaic Properties of Carbazole-Based Two-Dimensional Conjugated Polymers with Donor-π-Bridge-Acceptor Side Chains

被引：90

作者：

Duan, Chunhui ^{[1
]}

Chen, Kung-Shih ^{[2
]}

Huang, Fei ^{[1
]}

Yip, Hin-Lap ^{[2
]}

Liu, Shengjian ^{[1
]}

Zhang, Jie ^{[1
]}

Jen, Alex K. -Y. ^{[2
]}

Cao, Yong ^{[1
]}

机构：

[1] S China Univ Technol, Inst Polymer Optoelect Mat & Devices, Key Lab Specially Funct Mat, Minist Educ, Guangzhou 510640, Peoples R China

[2] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

来源：

CHEMISTRY OF MATERIALS | 2010年 / 22卷 / 23期

基金：

新加坡国家研究基金会;

关键词：

PHOTOINDUCED ELECTRON-TRANSFER; HETEROJUNCTION SOLAR-CELLS; INTERNAL CHARGE-TRANSFER; BANDGAP; EFFICIENCY; POLY(2,7-CARBAZOLE); PERFORMANCE; DERIVATIVES; NETWORK; DESIGN;

D O I：

10.1021/cm1027157

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：

A series of carbazole-based narrow-band gap polymers with two-dimensional donor-pi-bridge-acceptor (D-pi-A) structures were synthesized and characterized for use in polymer bulk heterojunction solar cells. These D-pi-A side-chain polymers were obtained through the Knoevenagel condensation between the aldehyde-containing precursor polymers and the corresponding acceptors. The resulting polymers have good solubility in common organic solvents and excellent thermal properties. The effects of the alkyl side chains and different dye contents on optical properties, electronic structures, charge-transporting ability, and device performance of these polymers were investigated. By blending these polymers as light-harvesting electron donors with (6,6)-phenyl-C-71-butyric acid methyl ester (PC71BM) electron acceptors in bulk heterojunction solar cells, high power conversion efficiency (PCE), as high as 4.47%, could be achieved.

引用

页码：6444 / 6452

页数：9

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