申请人:Universal Display Corporation
公开号:EP2520571A1
公开(公告)日:2012-11-07
Compounds containing 2-azatriphenylene are provided. In particular, compounds containing a 2-azatriphenylene core having an additional aromatic group are provided. R1, R2 and R3 may represent mono, di tri, or tetra substitutions; wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl, alkoxy, amino, alkenyl, alkynyl, arylkyl, aryl, and heteroaryl; and wherein at least one of R1, R2, R3 is an aryl or heteroaryl. The compounds provided may be emissive or non-emissive materials. The compounds may be used in organic light emitting devices, particularly as host materials, hole blocking layer materials, or emitting dopants. Devices comprising 2-azatriphenylene containing compounds may demonstrate improved stability and efficiency.
提供了含有 2-氮杂三亚苯的化合物。特别是提供了含有具有额外芳香基团的 2-氮杂三亚苯核心的化合物。R1、R2 和 R3 可代表单取代基、二三取代基或四取代基;其中 R1、R2 和 R3 独立地选自氢、烷基、烷氧基、氨基、烯基、炔基、芳烷基、芳基和杂芳基组成的组;并且 R1、R2 和 R3 中至少有一个是芳基或杂芳基。所提供的化合物可以是发射性或非发射性材料。这些化合物可用于有机发光器件,特别是作为宿主材料、空穴阻挡层材料或发光掺杂剂。含有 2-氮杂三亚苯化合物的器件可提高稳定性和效率。