Iridium-based luminescent compounds having phenylpyridine moieties with organosilicon group, and organic electroluminescence devices using the compounds as colour-emitting materials

摘要

Disclosed are iridium-based luminescent compounds having phenylpyridine moieties with an organosilicon group, and organic electroluminescence devices using the compounds as color-producing materials. The luminescent compounds have the structure of Formula 1 below:wherein L₁, L₂, L₃, R₁, R₂ and R₃, which may be identical to or different from each other, are each independently selected from the group consisting of aryl, alkoxy, alkyl, and groups of Formulae 2 and 3 below:wherein D₁, D₂ and D₃ are each independently selected from the group consisting of C_1~18 alkyl, C_1~18 alkoxy, substituted or unsubstituted C_1~18 alkyl and allyl, and substituted or unsubstituted C_6~18 fluorinated alkyl and allyl groups;wherein D₄, D₅ and D₆ are each independently selected from the group consisting of C_1~18 alkyl, C_1~18 alkoxy, substituted or unsubstituted C_1~18 alkyl and allyl, and substituted or unsubstituted C_6~18 fluorinated alkyl and allyl groups.