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    • 7. 发明申请
    • INTERMEDIATE CONNECTOR FOR A TANDEM OLED DEVICE
    • 用于TANDEM OLED器件的中间连接器
    • WO2007027441A1
    • 2007-03-08
    • PCT/US2006/032115
    • 2006-08-17
    • EASTMAN KODAK COMPANYHATWAR, Tukaram, KisanBEGLEY, William, James
    • HATWAR, Tukaram, KisanBEGLEY, William, James
    • H01L51/52H01L51/50
    • H01L51/5278H01L51/002H01L51/0054H01L51/0058H01L51/0081H01L51/5052
    • A tandem OLED device (200) includes an anode (110), a cathode (120, at least first (120.1) and second (120.2) electroluminescent units disposed between the anode and the cathode. The electroluminescent units (120.1,120.2) include an individually selected organic light-emitting layer (223.1,223.2) and an intermediate connector (130.1) disposed between the first and second electroluminescent units. The intermediate connector includes an n-type doped organic layer (331) having an n-type dopant and an electron- transporting material. The electron-transporting material is a mixture of a first organic compound that has the lowest LUMO value of the compounds in the n-type doped organic layer, in an amount greater than or equal to 10% by volume and less than 100% by volume of the layer; at least one second organic compound exhibiting a higher LUMO value than the first organic compound.
    • 串联OLED器件(200)包括阳极(110),设置在阳极和阴极之间的阴极(120,至少第一(120.1)和第二(120.2))电致发光单元,电致发光单元(120.1,120.2)包括 单独选择的有机发光层(223.1,223.2)和设置在第一和第二电致发光单元之间的中间连接器(130.1),中间连接器包括n型掺杂有机层(331),其具有n型掺杂剂和 电子传输材料,电子传输材料是n型掺杂有机层中化合物的LUMO值最低的第一有机化合物的混合物,其量大于或等于10体积% 超过100体积%的层;至少一种显示出比第一有机化合物更高的LUMO值的第二有机化合物。