Organic light-emitting device
    82.
    发明授权
    Organic light-emitting device 有权
    有机发光装置

    公开(公告)号:US08455113B2

    公开(公告)日:2013-06-04

    申请号:US12632679

    申请日:2009-12-07

    IPC分类号: H01L51/54

    摘要: A light-emitting layer emits light having an emission spectrum having a primary peak in the range of wavelengths of 430 to 480 nm. The light-emitting layer contains a host compound and a dopant compound. The dopant compound has an electron affinity of 2.93 eV or more higher that is than the host compound. The dopant compound in the lowest excited triplet state has an energy of 1.95 eV or less that is lower than the host compound in the lowest excited triplet state. The dopant compound has a smaller band gap than the host compound. The dopant compound is a hydrocarbon compound.

    摘要翻译: 发光层发射具有在波长为430〜480nm范围内的一次峰的发射光谱的光。 发光层含有主体化合物和掺杂剂。 掺杂剂化合物的电子亲和力比主体化合物高2.93eV或更高。 最低激发三重态的掺杂剂化合物的能量低于最低激发三线态的主体化合物1.95eV或更低。 掺杂剂化合物的带隙比主体化合物小。 掺杂剂是烃化合物。