Carbazole Compound, Light-Emitting Element Material, and Organic Semiconductor Material
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTakako TAKASU, Nobuharu OHSAWA
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Abstract
A carbazole compound which can be used for a transport layer or as a host material or a light-emitting material of a light-emitting element is provided. Specifically, a carbazole compound which makes it possible to obtain a light-emitting element having good characteristics when used in a light-emitting element emitting blue phosphorescence is provided. In the carbazole compound, the 9-position of one carbazole, the 9-position of the other carbazole, and the 1-position of a benzimidazole skeleton are bonded to the 1-position, the 3-position, and the 5-position of benzene.
Claims24
A carbazole compound represented by General Formula (G1):
- wherein Ar represents an aryl group having 6 to 18 carbon atoms,
- wherein R1 to R4 represents any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 13 carbon atoms.
A carbazole compound represented by Structural Formula (100):
Dependencies are inferred from the claim text.