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    PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES COMBINED WITH HOLE TRANSPORT MATERIAL HAVING HIGH OPERATING STABILITY
    2.
    发明申请
    PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES COMBINED WITH HOLE TRANSPORT MATERIAL HAVING HIGH OPERATING STABILITY 有权
    与具有高运行稳定性的孔运输材料组合的磷光体有机发光装置

    公开(公告)号：US20140339518A1

    公开(公告)日：2014-11-20

    申请号：US14237142

    申请日：2011-08-05

    申请人： Hitoshi Yamamoto ,  Michael Stewart Weaver ,  Norimasa Yokoyama ,  Makoto Nagaoka ,  Naoaki Kabasawa

    发明人： Hitoshi Yamamoto ,  Michael Stewart Weaver ,  Norimasa Yokoyama ,  Makoto Nagaoka ,  Naoaki Kabasawa

    IPC分类号： H01L51/00 ,  H01L51/50

    CPC分类号： H01L51/0072 ,  C09K11/06 ,  C09K2211/185 ,  H01L51/0054 ,  H01L51/0059 ,  H01L51/0074 ,  H01L51/5016 ,  H01L51/5064 ,  H05B33/14

    摘要： An improved OLED includes an emitter layer disposed between a cathode and an anode where the emitter layer includes a host material and a phosphorescent emitter material. A first hole transport layer is disposed between the emitter layer and the anode and a second hole transport layer is disposed between the first hole transport layer and the anode. The first hole transport layer includes a first hole transport material that is a carbazole type compound and the second hole transport layer includes a second hole transport material that is different from the first hole transport material. The phosphorescent emitter material includes a phosphorescent organometallic compound that is a heteroleptic compound represented by the formula L2MX, LL′MX, LL′L″M, or LMXX′, wherein L, L′, L″, X, and X′ are inequivalent, bidentate ligands and M is a metal that forms octahedral complexes, wherein L, L′, and L″ are monoanionic inequivalent bidentate ligands coordinated to M through an sp2 hybridized carbon and a heteroatom.

    摘要翻译： 改进的OLED包括设置在阴极和阳极之间的发射极层，其中发射极层包括主体材料和磷光发射极材料。 第一空穴传输层设置在发射极层和阳极之间，第二空穴传输层设置在第一空穴传输层和阳极之间。 第一空穴传输层包括作为咔唑型化合物的第一空穴传输材料，第二空穴传输层包括与第一空穴传输材料不同的第二空穴传输材料。 磷光发射体材料包括作为由式L2MX，LL'MX，LL'L“M或LMXX'表示的杂光化合物的磷光有机金属化合物，其中L，L'，L”，X和X'不相等 双齿配体和M是形成八面体络合物的金属，其中L，L'和L“是通过sp2杂化的碳和杂原子与M配位的单阴离子不等式二齿配体。