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US 11,910,710 B2Granted
Organic compound, light-emitting element, light-emitting device, electronic device, and lighting device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTomoya Hirose, Hiroshi Kadoma, Satoko Shitagaki, Satoshi Seo
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Abstract
A novel organic compound with which the emission characteristics, emission efficiency, and reliability of a light-emitting element can be improved is provided. The organic compound has an imidazo[1,2-f]phenanthridine skeleton and a dibenzothiophene skeleton or a dibenzofuran skeleton bonded through an arylene group. The light-emitting element including the organic compound in a light-emitting layer shows high efficiency and low power consumption.
Claims6
A light-emitting device comprising:
- a first electrode;
- a light-emitting layer including a first organic compound over the first electrode;
- and
- a second electrode over the light-emitting layer,
- wherein the first organic compound is represented by a formula (G1):
- wherein:
- R1 to R7 separately represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms,
- R8, R9, and R21 to R27 separately represent hydrogen,
- Ar represents a substituted or unsubstituted biphenyldiyl group, and
- Z represents a sulfur atom.
7 more elements
Dependencies are inferred from the claim text.