Iridium complex, carbazole derivatives and copolymer having the same
AssigneeGwangju Institute of Science and Technology
InventorsJae-Suk Lee, Nam-Goo Kang, Hyo-jin Jeon
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Abstract
Disclosed are a monomer of iridium complex having a fluoro group as a functional group, a monomer of carbazole derivative having a hydroxy group as the functional group, and a copolymer containing the monomers in its main chain. The iridium complex used as a phosphorescent material and the carbazole derivative having an excellent hole transporting capability are synthesized as the monomer to form the copolymer. The content of iridium complex is easily controlled, and the carbazole derivative and iridium complex are contained in the main chain during the copolymer formation, thereby capable of manufacturing a light emitting device with higher heat resistance and chemical stability.
Claims12
A carbazole derivative represented by the following Formula 1.
A monomer of iridium complex represented by the following Formula 2.
- wherein the ligand is selected from the structures described in the following Table.
- Ligand
- Name
- Structure
- 2-Phenyl-pyridine
- 2-p-Tolyl-pyridine
- 2-(4-Fluoro-phenyl)-pyridine
- 2-(2,4-Difluoro-phenyl)-pyridine
- Benzo[α]quinoline
- 1-Phenylisoquinoline
- 1-Naphthalen-2-yl-isoquinoline
- 2-Thiophen-2-yl-pyridine
- 2-Phenyl-benzothiozole
- 2-Phenyl-benzoenzooxezole
- 4-(5-ethylthio)-1H-tetrazol-1-yl)-2-fluorobenzonitrile
- 2-Biphenyl-4-yl-pyridine
A polymer having an iridium complex and carbazole derivative, represented by the following Formula 4.
- wherein a molecular weight of the polymer is 1000 to 900000, x+y is 100, and n is 1 to 10.
Dependencies are inferred from the claim text.