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

作　　者：LIU ShengJian ZHANG ZhiPeng CHEN DongCheng DUAN ChunHui LU JunMing ZHANG Jie HUANG Fei SU ShiJian CHEN JunWu CAO Yong 

机构地区：[1]State Key Laboratory of Luminescent Materials and Devices [2]Institute of Polymer Optoelectronic Materials & Devices,South China University of Technology

出　　处：《Science China Chemistry》2013年第8期1119-1128,共10页中国科学（化学英文版）

基　　金：financially supported by the National Basic Research Program of China (2009CB623601,2009CB930604,2011AA03A110);the National Natural Science Foundation of China (21125419,50990065,51073057,91233116);the Guangdong Natural Science Foundation (S2012030006230);the Research Fund for the Doctoral Program of Higher Education of China (20120172140001)

摘　　要：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.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 Al cathode and P-PPV emissive layer in polymer light-emitting diodes with device structure of ITO/PEDOT:PSS/P-PPV/interlayer/Al.The resulting devices exhibited improved performance due to the better electron injection/transporting ability of the designed copolymers from Al cathode to the light-emitting layer.

关 键 词：polymer light-emitting diodes amino-functionalized conjugated polymers electron injection/transporting material in-terfacial material CARBAZOLE 

分 类 号：O631.3[理学—高分子化学]