Iridium-based luminescent compounds having phenylpyridine moieties with organosilicon group, and organic electroluminescence devices using the compounds as color-producing materials
View Patent ↗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 L 1 , L 2 , L 3 , R 1 , R 2 and R 3 , 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 Formula 3 below:
1. An iridium-based luminescent compound of Formula 1 below:
wherein L 1 , L 2 , L 3 , R 1 , R 2 and R 3 , which may be identical to or different from each other, are each independently selected from the group consisting of hydrogen, and group of Formula 3 below:
wherein D 4 , D 5 and D 6 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 at least one of L 1 , L 2 , L 3 , R 1 , R 2 and R 3 is not hydrogen.
2. The compound according to claim 1 , wherein L 1 , L 2 , R 1 and R 3 are hydrogen, L 3 and R 2 , are the group of Formula 3 below:
3. An organic electroluminescence device using the iridium-based luminescent compound according to claims 1 or 2 as a color-producing material.