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    • 89. 发明申请
    • Organic electroluminescence device with charge separation layer
    • 具有电荷分离层的有机电致发光器件
    • US20070241675A1
    • 2007-10-18
    • US11723168
    • 2007-03-16
    • Mu-Gyeom KimO-Hyun KwonSang-Hoon Park
    • Mu-Gyeom KimO-Hyun KwonSang-Hoon Park
    • H01L51/54H01L51/52
    • H01L51/5278H01L27/3209Y10T428/24942
    • Provided is an organic electroluminescence device with an improved structure configured to enhance luminescent efficiency. An organic electroluminescence device includes a charge separation layer interposed between a first organic luminescent layer and a second organic luminescent layer. The charge separation layer includes one of a first charge transport material having greater hole mobility than materials for forming the first and second luminescent layers when electron mobility of the materials for forming the first and second luminescent layers is greater than their hole mobility, and a second charge transport material having greater electron mobility than materials for forming the first and second luminescent layers when hole mobility of the materials for forming the first and second luminescent layers is greater than their electron mobility.
    • 提供一种具有改进结构的有机电致发光器件,其被配置为提高发光效率。 有机电致发光器件包括介于第一有机发光层和第二有机发光层之间的电荷分离层。 当用于形成第一和第二发光层的材料的电子迁移率大于其空穴迁移率时,电荷分离层包括具有比用于形成第一和第二发光层的材料具有更大的空穴迁移率的第一电荷传输材料中的一种, 当用于形成第一和第二发光层的材料的空穴迁移率大于其电子迁移率时,电子传输材料具有比用于形成第一和第二发光层的材料更大的电子迁移率。