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Green Electrophosphorescent Polymers with Poly(3,6-Carbazole) as the Backbone: A Linear Structure Does Realize High Efficiency

Authors

  • Zhihua Ma,

    1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, P.R. China
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  • Lingcheng Chen,

    1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, P.R. China
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  • Junqiao Ding,

    Corresponding author
    1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
    • State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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  • Lixiang Wang,

    Corresponding author
    1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
    • State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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  • Xiabin Jing,

    1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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  • Fosong Wang

    1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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Abstract

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Linear green light-emitting electro­phosphorescent polymers have been successfully developed by chemically attaching a benzoimidazole-based iridium complex to the side chain of poly(3,6-carbazole). Efficiency values as high as 33.9 cd A−1 are obtained, indicating that the linear structure in the absence of an encapsulation effect can also lead to a device performance that is comparable with that of either dendrimer or hyperbranched polymers.

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