The present invention discloses a phosphorescent organic electroluminescence device including a hole transport layer, a luminescent layer and an electron transport layer, which are successively laminated. The luminescent layer has a double-layer structure comprising a hole transport material layer and an electron transport material layer. The hole transport material layer is arranged between the hole transport layer and the electron transport material layer. The electron transport material layer is arranged between the hole transport material layer and the electron transport layer. An exciplex is formed on the interface of contact between the hole transport material layer and the electron transport material layer. The hole transport material layer includes a host material, the host material being a material having hole transport capability; and the electron transport material layer includes a host material and a phosphorescent dye doped in the host material, the host material being a material having electron transport capability.


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    Title :

    ORGANIC ELECTROPHOSPHORESCENCE DEVICES


    Additional title:

    ORGANISCHE ELEKTROLUMINESZVORRICHTUNG
    DISPOSITIF À ÉLECTROPHOSPHORESCENCE ORGANIQUE


    Contributors:
    DUAN LIAN (author) / ZHANG DONGDONG (author) / LIU SONG (author) / ZHAO FEI (author)

    Publication date :

    2020-05-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H10K



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    Liu, M. W. / Wong, O. Y. / Xie, H. Z. et al. | British Library Conference Proceedings | 2001





    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

    European Patent Office | 2023

    Free access