Electropolymerized AIE‐active polymer film with high quantum efficiency and its application in OLED

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  • Jinyu Li
    State Key Laboratory of Supramolecular Structure and Materials Jilin University 2699 Qianjin Avenue Changchun 130012 China
  • Xiao Han
    State Key Laboratory of Supramolecular Structure and Materials Jilin University 2699 Qianjin Avenue Changchun 130012 China
  • Qing Bai
    State Key Laboratory of Supramolecular Structure and Materials Jilin University 2699 Qianjin Avenue Changchun 130012 China
  • Tong Shan
    State Key Laboratory of Supramolecular Structure and Materials Jilin University 2699 Qianjin Avenue Changchun 130012 China
  • Ping Lu
    State Key Laboratory of Supramolecular Structure and Materials Jilin University 2699 Qianjin Avenue Changchun 130012 China
  • Yuguang Ma
    Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology Guangzhou 510640 China

書誌事項

公開日
2016-11-17
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/pola.28414
公開者
Wiley

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説明

<jats:title>ABSTRACT</jats:title><jats:p>A carbazole functionalized electro‐active AIE‐activity molecule, <jats:bold>TPE‐DFCz</jats:bold>, was designed, synthesized, and well characterized. The clear difference in oxidation potentials between tetraphenylethylene (TPE) unit and carbazole groups was found which guaranteed that polymerization occurred only at the peripheral carbazole groups and the TPE unit remained unchanged. Its luminescent network film was prepared conveniently by electrochemical polymerization (EP). The cross‐linked film exhibited green emission with high quantum efficiency of 63%, relatively smooth surface, and good thermal stability. The effect of different scan cycles on the optical property was also investigated. The electroluminescent device using the optimized polymer film as active layer showed a maximum luminance of 3200 cd m<jats:sup>−2</jats:sup> and a maximum luminance efficiency of 1.16 cd A<jats:sup>−1</jats:sup> with very low roll‐off of the efficiency. The AIE‐active EP films afford more opportunities to develop polymer films with high quantum efficiency via a simple, effective method and promote the potential applications in display devices. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. <jats:bold>2017</jats:bold>, <jats:italic>55</jats:italic>, 707–715</jats:p>

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