Organic light-emitting element, and light-emitting material and compound for use therein
AssigneesToyobo Co., Ltd., Kyulux, Inc.
InventorsMasayuki YOKOYAMA, Kazutake HAGIYA, Chihaya ADACHI
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Abstract
Using a compound that contains a structure where a carbazol-9-yl group substituted with a perfluoroalkyl group at the 2-position and the 7-position and a structural unit having a positive Hammett constant σp (but excluding an aromatic hydrocarbon group) bond to each other directly or via a π-conjugated linking group, wherein at least a part of the carbazol-9-yl group and at least a part of the structural unit having a positive Hammett constant σp and, if any, the π-conjugated linking group form a π-electron conjugated system, an organic light emitting device having a high emission efficiency can be provided.
Claims27
A compound containing a structure where a carbazol-9-yl group substituted with a perfluoroalkyl group at the 2-position and the 7-position and a structural unit having a positive Hammett constant σp (but excluding an aromatic hydrocarbon group) bond to each other directly or via a π-conjugated linking group, wherein at least a part of the carbazol-9-yl group and at least a part of the structural unit having a positive Hammett constant σp and, if any, the π-conjugated linking group form a π-electron conjugated system.
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Dependencies are inferred from the claim text.