Oxadiazole derivative, light-emitting element, display device, lighting device, and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsHiroko Nomura, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo
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Abstract
Provided is a bipolar substance having high excitation energy, in particular, high triplet-excitation energy. An oxadiazole derivative represented by General Formula (G1) below is provided In the formula, Ar represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring. R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring. R2 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring.
Claims20
An oxadiazole derivative represented by Formula (G1),
- wherein Ar represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring,
- wherein R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and
- wherein R2 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring.
A display device comprising a light-emitting element comprising an oxadiazole derivative represented by Formula (G1),
- wherein Ar represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring,
- wherein R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and
- wherein R2 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring.
A lighting device comprising a light-emitting element comprising an oxadiazole derivative represented by Formula (G1),
- wherein Ar represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring,
- wherein R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and
- wherein R2 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring.
Dependencies are inferred from the claim text.