Advanced Materials

Bis(carbazolyl)benzodifuran: A High-Mobility Ambipolar Material for Homojunction Organic Light-Emitting Diode Devices

Authors

  • Hayato Tsuji,

    Corresponding author
    1. Department of Chemistry, The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
    • Department of Chemistry, The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan).
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  • Chikahiko Mitsui,

    1. Department of Chemistry, The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
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  • Yoshiharu Sato,

    Corresponding author
    1. Nakamura Functional Carbon Cluster Project, ERATO Japan Science and Technology Agency Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
    • Nakamura Functional Carbon Cluster Project, ERATO Japan Science and Technology Agency Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan).
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  • Eiichi Nakamura

    Corresponding author
    1. Department of Chemistry, The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
    2. Nakamura Functional Carbon Cluster Project, ERATO Japan Science and Technology Agency Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)
    • Department of Chemistry, The University of Tokyo Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan).
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Abstract

A new ambipolar material bis(carbazolyl)benzodifuran (CZBDF) shows well-balanced and high carrier mobilities for both holes and electrons (>10−3 cm2 V−1 s−1). This new material allows us to fabricate efficient p-i-n homojunction OLEDs that emit light across the full visible color range and perform at a level similar to state-of-the-art heterojunction devices.

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