Towards Highly Efficient Blue-Phosphorescent Organic Light-Emitting Diodes with Low Operating Voltage and Excellent Efficiency Stability

Authors

  • Chunmiao Han,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080 (P.R. China), Fax: (+86) 451-86608042
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  • Guohua Xie,

    1. State Key Laboratory on Integrated Optoelectronics, College of Electronics Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012 (P.R. China), Fax: (+86) 431-5095592
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  • Dr. Hui Xu,

    Corresponding author
    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080 (P.R. China), Fax: (+86) 451-86608042
    • Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080 (P.R. China), Fax: (+86) 451-86608042
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  • Zhensong Zhang,

    1. State Key Laboratory on Integrated Optoelectronics, College of Electronics Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012 (P.R. China), Fax: (+86) 431-5095592
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  • Donghui Yu,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080 (P.R. China), Fax: (+86) 451-86608042
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  • Prof. Yi Zhao,

    Corresponding author
    1. State Key Laboratory on Integrated Optoelectronics, College of Electronics Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012 (P.R. China), Fax: (+86) 431-5095592
    • State Key Laboratory on Integrated Optoelectronics, College of Electronics Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012 (P.R. China), Fax: (+86) 431-5095592
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  • Prof. Pengfei Yan,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080 (P.R. China), Fax: (+86) 451-86608042
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  • Zhaopeng Deng,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080 (P.R. China), Fax: (+86) 451-86608042
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  • Dr. Qiang Li,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080 (P.R. China), Fax: (+86) 451-86608042
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  • Prof. Shiyong Liu

    1. State Key Laboratory on Integrated Optoelectronics, College of Electronics Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012 (P.R. China), Fax: (+86) 431-5095592
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Abstract

original image

Let there be light! An effective strategy for the design of highly efficient phosphine oxide light-emitting-diode hosts with an ortho-linked structure has been demonstrated by synthesizing 4-diphenylphosphoryl dibenzofuran. The ortho linkage of the phosphine oxide moiety has the dual effect of retaining high T1 levels and efficiently polarising chromophores (see graphic).

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