Invention Grant
US09040720B2 Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device 有权
有机化合物,发光元件,发光装置,电子装置和照明装置

Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device
Abstract:
A novel substance with which an increase in life and emission efficiency of a light-emitting element can be achieved is provided. A carbazole compound having a structure represented by General Formula (G1) is provided. Note that a substituent which makes the HOMO level and the LUMO level of a compound in which a bond of the substituent is substituted with hydrogen deep and shallow, respectively is used as each of substituents in General Formula (G1) (R1, R2, Ar3, and α3). Further, a substituent which makes the band gap (Bg) and the T1 level of a compound in which a bond of the substituent is substituted with hydrogen wide and high is used as each of the substituents in General Formula (G1) (R1, R2, Ar3, and α3).
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