[EN] SINGLE TRIPHENYLENE CHROMOPHORES IN PHOSPHORESCENT LIGHT EMITTING DIODES<br/>[FR] CHROMOPHORES À TRIPHÉNYLÈNE SIMPLE DANS DES DIODES ÉLECTROLUMINESCENTES PHOSPHORESCENTES
申请人:UNIVERSAL DISPLAY CORP
公开号:WO2009021107A1
公开(公告)日:2009-02-12
Novel triphenylene compounds are provided. Specific examples include multi-aryl-substituted triphenylenes. A preferred group of compounds are triphenylenes that are substituted with a non-fused aryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups and alkyl groups. A further preferred group of compounds are triphenylenes that are substituted with a non-fused heteroaryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl or heteroaryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups, non-fused heteroaryl groups, and alkyl groups. Some high triplet energy analogs are expected to work with deep blue phosphorescent dopants. The compounds may be useful in phosphorescent organic light emitting devices. Also provided is an organic electroluminescent device comprising an anode, a cathode, and an emissive layer between the anode and the cathode, the emissive layer comprising a phosphorescent material and a compound having a repeat unit, the repeat unit containing a triphenylene moiety.
提供了新型三苯基化合物。具体示例包括多芳基取代的三苯基化合物。一组首选化合物是被非融合芳基取代的三苯基化合物,该芳基具有一个或多个间位取代基,其中每个间位取代基是一个非融合芳基,可选地取代有来自非融合芳基和烷基组的进一步取代基。另一组首选化合物是被非融合杂芳基取代的三苯基化合物,该杂芳基具有一个或多个间位取代基,其中每个间位取代基是一个非融合芳基或杂芳基,可选地取代有来自非融合芳基、非融合杂芳基和烷基组的进一步取代基。预计一些高三重态能量的类似物将与深蓝色磷光掺杂剂配合使用。这些化合物可能在磷光有机发光器件中有用。还提供了一种有机电致发光器件,包括阳极、阴极和位于阳极和阴极之间的发射层,该发射层包括一个磷光材料和一个含有三苯基单元的化合物。