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    • 5. 发明申请
    • Highly efficient organic electroluminescent device
    • 高效的有机电致发光器件
    • US20060125382A1
    • 2006-06-15
    • US11338800
    • 2006-01-25
    • Sang-Dae KimYoon-Soo HanYoon-Heung Tak
    • Sang-Dae KimYoon-Soo HanYoon-Heung Tak
    • H01L51/50
    • H01L51/5012H01L51/5096Y10T428/24942
    • The present invention relates to a highly efficient organic electroluminescent device, and particularly to an organic electroluminescent device comprising an anode (a first electrode), a cathode (a second electrode), and one or more organic luminescent layers formed between the anode and the cathode, having an emission layer, wherein the emission layer comprises a doping region having host material and doping material, and a non-doping region having only host material as the hole blocking layer, which is in contact with the doping region, and a preparation method thereof. The organic electroluminescent device of the present invention is characterized in high efficiency, low cost, and improved process without forming the hole blocking layer by using a separate organic material.
    • 本发明涉及一种高效的有机电致发光器件,特别涉及包含阳极(第一电极),阴极(第二电极)和形成在阳极和阴极之间的一个或多个有机发光层的有机电致发光器件 具有发射层,其中所述发射层包括具有主体材料和掺杂材料的掺杂区域,以及仅具有与所述掺杂区域接触的主体材料作为空穴阻挡层的非掺杂区域,以及制备方法 其中。 本发明的有机电致发光元件的特征在于高效率,低成本和改进的工艺,而不用单独的有机材料形成空穴阻挡层。