Light emissive device having cathode comprising a codeposited mixed layer
    10.
    发明授权
    Light emissive device having cathode comprising a codeposited mixed layer 有权
    具有包含共沉积混合层的阴极的发光装置

    公开(公告)号:US08415875B2

    公开(公告)日:2013-04-09

    申请号:US13241131

    申请日:2011-09-22

    IPC分类号: H01J1/62 H01J63/04

    摘要: An organic light emissive device comprising: a first electrode; a second electrode; and an organic light emissive region between the first and second electrodes comprising an organic light emissive material which has a peak emission wavelength, wherein at least one of the electrodes is transparent and comprises a composite of a charge injecting metal and another material which is codepositable with the charge injecting metal, the other material having a different refractive index to that of the charge injecting metal and wherein the other material has a lower degree of quenching at the peak emission wavelength than the charge injecting metal whereby quenching of excitons by the at least one electrode is reduced, the charge injecting metal comprising either a low work function metal having a work function of no more than 3.5 eV or a high work function metal having a work function of no less than 4.5 eV.

    摘要翻译: 一种有机发光装置,包括:第一电极; 第二电极; 以及第一和第二电极之间的有机发光区域,其包括具有峰值发射波长的有机发光材料,其中至少一个电极是透明的,并且包括电荷注入金属和可与 所述电荷注入金属,所述另一种材料具有与所述电荷注入金属的折射率不同的折射率,并且其中所述另一种材料在峰值发射波长处具有比所述电荷注入金属低的淬灭程度,由此使所述至少一个激子的猝灭 电极被还原,电荷注入金属包括功函数不超过3.5eV的低功函数金属或功函数不低于4.5eV的高功函金属。