Advanced Materials

A Single Phosphine Oxide Host for High-Efficiency White Organic Light-Emitting Diodes with Extremely Low Operating Voltages and Reduced Efficiency Roll-Off

Authors

  • Chunmiao Han,

    1. Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080, P. R. China
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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
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  • 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
    • Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, Heilongjiang University, 74 Xuefu Road, Harbin 150080, P. R. China
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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
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  • Linghai Xie,

    1. Institute of Advanced Materials (IAM), Jiangsu Key Laboratory of Organic Electronics and Flat-Panel Displays, Nanjing University of Posts and Telecommunications (NJUPT), 66 Xinmofan Road, Nanjing 210003, P. R. China
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  • 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
    • State Key Laboratory on Integrated Optoelectronics, College of Electronics Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
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  • 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
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  • Wei Huang

    1. Institute of Advanced Materials (IAM), Jiangsu Key Laboratory of Organic Electronics and Flat-Panel Displays, Nanjing University of Posts and Telecommunications (NJUPT), 66 Xinmofan Road, Nanjing 210003, P. R. China
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Abstract

Highly efficient white organic light-emitting diodes (WOLEDs) with a simple, single-host-based structure are fabricated to realize the state-of-the-art performance of extremely low driving voltages, high efficiencies, and low efficiency roll-offs. This is the first single-host-based WOLED with both high efficiency and extremely low operating voltage at practical luminescence, demonstrating the great potential of these WOLEDs for portable display and lighting applications.

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