Organic compound, anthracene derivative, and light-emitting element, light-emitting device, and electronic device in which the anthracene derivative is used

Patent metadata

Field	Value
Publication number	US-9831440-B2
Application number	US-201615280394-A
Country	US
Kind code	B2
Filing date	Sep 29, 2016
Priority date	Apr 25, 2007
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (8) are provided. Further, by use of the anthracene derivative represented by the general formula (1), a light-emitting element with high emission efficiency can be obtained. Furthermore, by use of the anthracene derivative represented by the general formula (1), a light-emitting element that emits blue light with high color purity can be obtained.

First claim

What is claimed is:

1. An anthracene derivative represented by a general formula (1),

wherein Ar 1 and Ar 2 each represent a substituted or unsubstituted aryl group having 6 carbon atoms,
wherein α represents a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenylene group,
wherein β represents a substituted or unsubstituted arylene group having 6 to 25 carbon atoms,
wherein R 1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 25 carbon atoms,
wherein R 2 represents one of hydrogen, an alkyl group having 1 to 4 carbon atoms, a substituted or unsubstituted aryl group having 6 to 25 carbon atoms, a halogen group, and a haloalkyl group, and
wherein R 11 to R 18 each represent hydrogen or an alkyl group having 1 to 4 carbon atoms.

2. The anthracene derivative according to claim 1 , wherein Ar 1 is a phenyl group.

3. The anthracene derivative according to claim 1 , wherein Ar 2 is represented by a structural formula (301), and

wherein R 3 to R 7 each represent one of hydrogen, an alkyl group having 1 to 4 carbon atoms, a halogen group, and a haloalkyl group.

4. The anthracene derivative according to claim 1 , wherein Ar 2 is a phenyl group substituted by a naphthyl group.

5. The anthracene derivative according to claim 1 , wherein β is represented by any one of Previously presented

6. A light-emitting element comprising:
a first electrode;
a layer comprising an anthracene derivative over the first electrode; and
a second electrode over the layer,
wherein the anthracene derivative is represented by a general formula (1),

wherein Ar 1 and Ar 2 each represent a substituted or unsubstituted aryl group having 6 carbon atoms,
wherein α represents a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenylene group,
wherein β represents a substituted or unsubstituted arylene group having 6 to 25 carbon atoms,
wherein R 1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 25 carbon atoms,
wherein R 2 represents one of hydrogen, an alkyl group having 1 to 4 carbon atoms, a substituted or unsubstituted aryl group having 6 to 25 carbon atoms, a halogen group, and a haloalkyl group, and
wherein R 11 to R 18 each represent hydrogen or an alkyl group having 1 to 4 carbon atoms.

7. The light-emitting element according to claim 6 , wherein Ar 1 is a phenyl group.

8. The light-emitting element according to claim 6 , wherein Ar 2 is represented by a structural formula (301), and

wherein R 3 to R 7 each represent one of hydrogen, an alkyl group having 1 to 4 carbon atoms, a halogen group, and a haloalkyl group.

9. The light-emitting element according to claim 6 , wherein Ar 2 is a phenyl group substituted by a naphthyl group.

10. The light-emitting element according to claim 6 , wherein β is represented by any one of formulae (β-1) to (β-10),

11. The light-emitting element according to claim 6 , wherein the layer is a light-emitting layer.

Assignees

• Semiconductor Energy Lab

Inventors

• Kawakami Sachiko
• Ohsawa Nobuharu

Classifications

• Y10S428/917

  Electroluminescent · CPC title

• C09K2211/1029

  containing one nitrogen atom as the heteroatom · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title

• C07D209/86

  with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system · CPC title

• C09K2211/1007

  Non-condensed systems · CPC title