- A blue organic light emitting diode material (by machine translation)
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An organic light-emitting diode, which is characterized in that the organic light-emitting diode is composed of a cathode, an anode and a cathode and an anode of the organic semiconductor layer. In organic semiconductor light-emitting layer containing an organic semiconductor compound, the formula is: Is characterized in that the phenantrho imidazole is connected with the benzene ring of the fusion ring is connected with a fragrant mixed, help to improve the charge injection and the light-emitting stability, high stability, high efficiency and long life of the light-emitting performance. (by machine translation)
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- SINGLE TRIPHENYLENE CHROMOPHORES IN PHOSPHORESCENT LIGHT EMITTING DIODES
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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.
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Page/Page column 33-34
(2009/04/25)
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