HOST FOR ORGANIC LIGHT EMITTING DEVICES
    1.
    发明申请
    HOST FOR ORGANIC LIGHT EMITTING DEVICES 审中-公开
    有机发光器件主机

    公开(公告)号:US20140203259A1

    公开(公告)日:2014-07-24

    申请号:US14158301

    申请日:2014-01-17

    IPC分类号: H01L51/50 H01L51/00

    摘要: A first device comprising a first organic light emitting device (OLED) is described. The first OLED includes an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer includes a phosphorescent emissive dopant and a host material. The host material includes inorganic nanocrystals where (i) at least 50% of ligands bonded to said nanocrystals are compact ligands, (ii) an average interparticle distance between adjacent nanoparticles is ≦1 nm, or (iii) both. Also described are a method of making the emissive layer and a composition that includes the phosphorescent emissive dopant with the host materials that include the electronically-coupled inorganic nanocrystal host material.

    摘要翻译: 描述了包括第一有机发光器件(OLED)的第一器件。 第一OLED包括阳极,阴极和布置在阳极和阴极之间的发射层。 发射层包括磷光发光掺杂剂和主体材料。 主体材料包括无机纳米晶体,其中(i)至少50%的与所述纳米晶体结合的配体是紧密配体,(ii)相邻纳米颗粒之间的平均颗粒间距离为1nm,或(iii)两者。 还描述了制造发光层的方法和包含磷光发光掺杂剂与包含电子耦合的无机纳米晶体主体材料的主体材料的组合物。