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    Organic light emitting device with reverse intersystem crossing light emitting molecules
    52.
    发明授权
    Organic light emitting device with reverse intersystem crossing light emitting molecules 失效
    具有反向系统交叉发光分子的有机发光器件

    公开(公告)号：US07034454B2

    公开(公告)日：2006-04-25

    申请号：US10733294

    申请日：2003-12-12

    申请人： Tatsundo Kawai ,  Koichi Suzuki ,  Hiroshi Tanabe ,  Keiji Okinaka ,  Naoki Yamada ,  Chika Negishi ,  Akihito Saito ,  Maki Okajima

    发明人： Tatsundo Kawai ,  Koichi Suzuki ,  Hiroshi Tanabe ,  Keiji Okinaka ,  Naoki Yamada ,  Chika Negishi ,  Akihito Saito ,  Maki Okajima

    IPC分类号： H05B33/00

    CPC分类号： H05B33/14 ,  C09K11/06 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1092 ,  H01L51/0052 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/008 ,  H01L51/0094 ,  H01L51/5012 ,  H01L2251/308

    摘要： There is provided an organic light emitting device to break through the limit of 25% of internal quantum efficiency and 5% of external quantum efficiency while using singlet luminescence. Specifically provided is an organic light emitting device comprising an anode, an organic layer and a cathode, wherein light-emitting molecules present in an emissive layer which is at least a part of the organic layer and responsible for luminescence by charge injection effect transition from a triplet excited state having an energy level higher than a lowest excited singlet state to a singlet excited state and effect fluorescent emission in a fluorescence quantum yield of 60% or more in the same state as existing in the emissive layer, and wherein the emissive layer comprises the light-emitting molecules as a main component in an amount of 50 wt % or more, or is doped with the light-emitting molecules at a high concentration of 7 wt % or more, or is a layer in which the light-emitting molecules are excitable by direct trapping of electrons and holes has enabled to break through the limit of 25% of internal quantum efficiency and 5% of external quantum efficiency while using singlet luminescence.

    摘要翻译： 提供了一种有机发光装置，在使用单线态发光的同时，突破了25％的内量子效率和5％的外量子效率。 具体提供的是包括阳极，有机层和阴极的有机发光器件，其中存在于发光层中的发光分子是发光层的至少一部分，并且通过电荷注入效应从 三重态激发态具有比最低激发单态更高于单重激发态的能级，并且在与发射层中存在的相同状态下以60％以上的荧光量子产率实现荧光发射，并且其中发射层包含 作为主成分的发光分子为50重量％以上，或以7重量％以上的高浓度掺杂发光分子，或者是发光分子 可以通过电子的直接捕获来激发，并且使用单峰可以突破25％内部量子效率和5％外部量子效率的极限 发光。

    ORGANIC LIGHT-EMITTING DEVICE
    57.
    发明申请
    ORGANIC LIGHT-EMITTING DEVICE 审中-公开
    有机发光装置

    公开(公告)号：US20090066227A1

    公开(公告)日：2009-03-12

    申请号：US11913046

    申请日：2006-08-12

    申请人： Keiji Okinaka ,  Naoki Yamada ,  Satoshi Igawa ,  Jun Kamatani ,  Masataka Yashima

    发明人： Keiji Okinaka ,  Naoki Yamada ,  Satoshi Igawa ,  Jun Kamatani ,  Masataka Yashima

    IPC分类号： C09K11/06

    CPC分类号： C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/5036 ,  H05B33/14

    摘要： An object of the present invention is to provide an organic blue-light-emitting device having high emission efficiency and a long continuous driving lifetime. The organic light-emitting device include a layer containing a first compound having a fluoranthene skeleton and a second compound having a pyrene skeleton, the second compound having an energy gap larger than that of the first compound, wherein EL1 representing the energy of the lowest unoccupied molecular orbit (LUMO) of the first compound and EL2 representing the energy of the LUMO of the second compound satisfy a relationship of EL2−EL1≧0.15 eV.

    摘要翻译： 本发明的目的是提供一种发光效率高，连续驱动寿命长的有机蓝光发光元件。 有机发光器件包括含有具有荧蒽骨架的第一化合物和具有芘骨架的第二化合物的层，第二化合物的能隙大于第一化合物的能隙，其中EL1表示最低未被占据的能量 第一化合物的分子轨道（LUMO）和表示第二化合物的LUMO能量的EL2满足EL2-EL1> = 0.15eV的关系。