Fluorene derivative, light-emitting element, light-emitting device, electronic device, and lighting device

Patent metadata

Field	Value
Publication number	US-10050207-B2
Application number	US-201615385160-A
Country	US
Kind code	B2
Filing date	Dec 20, 2016
Priority date	Oct 22, 2009
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

An object is to provide a new fluorene derivative as a good light-emitting material for organic EL elements. A fluorene derivative represented by General Formula (G1) is provided.

In the formula, R 1 to R 8 separately represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group. Further, α 1 to α 4 separately represent a substituted or unsubstituted phenylene group. Ar 1 represents a substituted or unsubstituted condensed aromatic hydrocarbon having 14 to 18 carbon atoms forming a ring. Ar 2 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms forming a ring. Ar 3 represents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms. Further, j, m, and n separately represent 0 or 1, and p represents 1 or 2.

First claim

What is claimed is:

1. A compound represented by Formula (G1),

wherein R 1 to R 8 separately represent any one of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an unsubstituted phenyl group; an unsubstituted biphenyl group; a phenyl group substituted by a methyl group, an ethyl group, a propyl group, a pentyl group, a hexyl group, or a biphenyl group; and a biphenyl group substituted by a methyl group, an ethyl group, a propyl group, a pentyl group, a hexyl group, or a biphenyl group,
wherein α 1 to α 4 separately represent an unsubstituted phenylene group or a phenylene group substituted by a methyl group, an ethyl group, a propyl group, a pentyl group, a hexyl group, a phenyl group, or a biphenyl group,
wherein Ar 1 is represented by Formula (Ar1-3)

wherein R 21 to R 23 separately represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms,
wherein Ar 2 represents an unsubstituted aryl group having 6 to 10 carbon atoms forming a ring or an aryl group having 6 to 10 carbon atoms forming a ring substituted by a methyl group, an ethyl group, a propyl group, a pentyl group, a hexyl group, a phenyl group, or a biphenyl group,
wherein Ar 3 is represented by any one of Formulas (Ar3-1) to (Ar3-8)

wherein j, m, and n separately represent 0 or 1, and
wherein p represents 1.

2. The compound according to claim 1 , wherein α 1 to α 4 are separately represented by any one of Formulas (α-1) to (α-3)

3. The compound according to claim 1 , wherein R 1 to R 8 are separately represented by any one of Formulas (R-1) to (R-9)

4. A light-emitting element comprising:
a pair of electrodes; and
a light-emitting layer including the compound according to claim 1 between the pair of electrodes.

5. A light-emitting device comprising the light-emitting element according to claim 4 .

6. A compound represented by Formula (G1),

wherein R 1 to R 8 separately represent any one of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an unsubstituted phenyl group; an unsubstituted biphenyl group; a phenyl group substituted by a methyl group, an ethyl group, a propyl group, a pentyl group, a hexyl group, or a biphenyl group; and a biphenyl group substituted by a methyl group, an ethyl group, a propyl group, a pentyl group, a hexyl group, or a biphenyl group,
wherein α 1 to α 4 separately represent an unsubstituted phenylene group or a phenylene group substituted by a methyl group, an ethyl group, a propyl group, a pentyl group, a hexyl group, a phenyl group, or a biphenyl group,
wherein Ar 1 is represented by Formula (Ar1-4)

wherein R 21 and R 23 separately represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms,
wherein Ar 2 represents an unsubstituted aryl group having 6 to 10 carbon atoms forming a ring or an aryl group having 6 to 10 carbon atoms forming a ring substituted by a methyl group, an ethyl group, a propyl group, a pentyl group, a hexyl group, a phenyl group, or a biphenyl group,
wherein Ar 3 is represented by any one of Formulas (Ar3-1) to (Ar3-8)

wherein j, m, and n separately represent 0 or 1, and
wherein p represents 2.

7. The compound according to claim 6 , wherein α 1 to α 4 are separately represented by any one of Formulas (α-1) to (α-3)

8. The compound according to claim 6 , wherein R 1 to R 8 are separately represented by any one of Formulas (R-1) to (R-9)

9. A light-emitting element comprising:
a pair of electrodes; and
a light-emitting layer including the compound according to claim 8 between the pair of electrodes.

10. A light-emitting device comprising the light-emitting element according to claim 9 .

Assignees

• Semiconductor Energy Lab

Inventors

• Ogita Kaori
• Suzuki Tsunenori
• Osaka Harue
• Seo Satoshi

Classifications

• C09K11/06 Primary

  containing organic luminescent materials · CPC title

• C09K2211/1007

  Non-condensed systems · CPC title

• C07C2601/14

  The ring being saturated · CPC title

• C09K2211/1011

  Condensed systems · CPC title

• H05B33/10

  Apparatus or processes specially adapted to the manufacture of electroluminescent light sources · CPC title