Synthesis and optoelectronic properties of amino-functionalized carbazole-based conjugated polymers

A series of alcohol soluble amino-functionalized carbazole-based copolymers were synthesized via Suzuki coupling reaction. The pendent amino groups endow them high solubility in polar solvents, as well as efficient electron injection capability from high work-function metals. The relationships betwe...

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Bibliographic Details
Published in:Science China. Chemistry 2013-08, Vol.56 (8), p.1119-1128
Main Authors: Liu, ShengJian, Zhang, ZhiPeng, Chen, DongCheng, Duan, ChunHui, Lu, JunMing, Zhang, Jie, Huang, Fei, Su, ShiJian, Chen, JunWu, Cao, Yong
Format: Article
Language:English
Subjects:
Carbazoles
Cathodes
Chemical reactions
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Copolymers
Electrochemical analysis
Interlayers
Light emitting diodes
Optoelectronics
Polymers
Suzuki
光电特性
共轭聚合物
反应合成
咔唑
器件结构
氨基
聚合物发光二极管
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Summary:A series of alcohol soluble amino-functionalized carbazole-based copolymers were synthesized via Suzuki coupling reaction. The pendent amino groups endow them high solubility in polar solvents, as well as efficient electron injection capability from high work-function metals. The relationships between the photophysical and electrochemical properties and the polymer backbone structure were systematically investigated. These alcohol-soluble carbazole-based copolymers were used as cathode interlayers between the high work-function metal A1 cathode and P-PPV emissive layer in polymer light-emitting diodes with device structure of ITO/PEDOT：PSS/P-PPV/interlayer/A1. The resulting devices exhibited improved performance due to the better electron injection/transporting ability of the designed copolymers from A1 cathode to the light-emitting layer.
ISSN:1674-7291
1869-1870
DOI:10.1007/s11426-013-4864-2