Dipolar Dibenzothiophene S,S-Dioxide Derivatives Containing Diarylamine: Materials for Single-Layer Organic Light-Emitting Devices

Authors

  • T.-H. Huang,

    1. Institute of Chemistry, Academia Sinica, Taipei, Taiwan 115, Republic of China
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  • J. T. Lin,

    1. Institute of Chemistry, Academia Sinica, Taipei, Taiwan 115, Republic of China
    2. Department of Chemistry, National Central University, Chungli, Taiwan 320, Republic of China
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  • L.-Y. Chen,

    1. Department of Electrical Engineering, Graduate Institute of Electro-optical Engineering, and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan 106, Republic of China
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  • Y.-T. Lin,

    1. Department of Electrical Engineering, Graduate Institute of Electro-optical Engineering, and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan 106, Republic of China
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  • C.-C. Wu

    1. Department of Electrical Engineering, Graduate Institute of Electro-optical Engineering, and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan 106, Republic of China
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  • We thank the Academia Sinica, National Taiwan University, and the National Science Council for supporting this work.

Abstract

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Dipolar compounds for use in simplified, single-layer organic light-emitting devices (OLEDs) containing a dibenzothiophene S,S-dioxide core and two peripheral diarylamines are synthesized. These materials exhibit bipolar carrier-transport properties, and efficient single-layer electroluminescent devices (see Figure; ITO: indium tin oxide) using these materials are demonstrated. These compounds may lead to devices with performances comparable to multilayer ones at lower costs.

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