Anthracene compound, light-emitting element, light-emitting device, electronic appliance, and lighting device

Patent metadata

Field	Value
Publication number	US-9478749-B2
Application number	US-201414222786-A
Country	US
Kind code	B2
Filing date	Mar 24, 2014
Priority date	Mar 28, 2013
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

An organic compound having a high T 1 level is provided. An element emitting phosphorescence in the blue and green regions is provided. An organic compound having a high glass-transition temperature is provided. A light-emitting element, a light-emitting device, an electronic appliance, or a lighting device having high heat resistance is provided. A light-emitting element includes at least a hole-transport layer, a light-emitting layer, and an electron-transport layer between an anode and a cathode. An anthracene compound represented by General Formula (G1) is contained in at least one of the hole-transport layer, the light-emitting layer, and the electron-transport layer.

First claim

What is claimed is:

1. A light-emitting element comprising:
an anode;
a cathode;
a hole-transport layer;
a light-emitting layer; and
an electron-transport layer,
wherein the hole-transport layer, the light-emitting layer, and the electron-transport layer are provided between the anode and the cathode,
wherein the light-emitting layer comprises an anthracene compound represented by General Formula (G1) and a phosphorescent compound, and
wherein one of the hole-transport layer and the electron-transport layer comprises the anthracene compound represented by General Formula (G1),

wherein α represents a substituted or unsubstituted m-phenylene group or a substituted or unsubstituted 3,3′-biphenyldiyl group,
wherein Ar represents any of a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted triphenylenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyridyl group, a substituted or unsubstituted pyrimidyl group, a substituted or unsubstituted dibenzoquinoxalinyl group, a substituted or unsubstituted benzimidazolyl group, and a substituted or unsubstituted benzoxazolyl group, and
wherein in the case where a substituent is bonded to Ar, the substituent is a phenyl group, a biphenyl group, or an alkyl group having 1 to 6 carbon atoms.

2. A light-emitting element comprising:
an anode;
a cathode;
a hole-transport layer;
a light-emitting layer; and
an electron-transport layer,
wherein the hole-transport layer, the light-emitting layer, and the electron-transport layer are provided between the anode and the cathode,
wherein the electron-transport layer comprises an anthracene compound represented by General Formula (G1) and an electron-transport compound,

wherein α represents a substituted or unsubstituted m-phenylene group or a substituted or unsubstituted 3,3′-biphenyldiyl group,
wherein Ar represents any of a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted triphenylenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyridyl group, a substituted or unsubstituted pyrimidyl group, a substituted or unsubstituted dibenzoquinoxalinyl group, a substituted or unsubstituted benzimidazolyl group, and a substituted or unsubstituted benzoxazolyl group, and
wherein in the case where a substituent is bonded to Ar, the substituent is a phenyl group, a biphenyl group, or an alkyl group having 1 to 6 carbon atoms.

3. A light-emitting element comprising:
an anode;
a cathode;
a hole-transport layer;
a light-emitting layer; and
an electron-transport layer,
wherein the hole-transport layer, the light-emitting layer, and the electron-transport layer are provided between the anode and the cathode,
wherein the hole-transport layer comprises an anthracene compound represented by General Formula (G1) and a hole-transport compound,

wherein α represents a substituted or unsubstituted m-phenylene group or a substituted or unsubstituted 3,3′-biphenyldiyl group,
wherein Ar represents any of a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted triphenylenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted fluorenyl group, a substituted or unsubstituted pyridyl group, a substituted or unsubstituted pyrimidyl group, a substituted or unsubstituted dibenzoquinoxalinyl group, a substituted or unsubstituted benzimidazolyl group, and a substituted or unsubstituted benzoxazolyl group, and
wherein in the case where a substituent is bonded to Ar, the substituent is a phenyl group, a biphenyl group, or an alkyl group having 1 to 6 carbon atoms.

4. The light-emitting element according to claim 1 ,
wherein the other of the hole-transport layer and the electron-transport layer comprises the anthracene compound represented by General Formula (G1),
wherein the hole-transport layer further comprises a hole-transport organic compound, and
wherein the electron-transport layer further comprises an electron-transport organic compound.

5. The light-emitting element according to claim 1 ,
wherein the light-emitting layer further comprises an electron-transport organic compound or a hole-transport organic compound.

6. The light-emitting element according to claim 1 ,
wherein a phosphorescence wavelength peak is less than or equal to 570 nm.

7. The light-emitting element according to claim 2 ,
wherein a phosphorescence wavelength peak is less than or equal to 570 nm.

8. The light-emitting element according to claim 3 ,
wherein a phosphorescence wavelength peak is less than or equal to 570 nm.

9. A compound represented by Structural Formula (100)

10. A compound represented by Structural Formula (103)

11. A compound represented by Structural Formula (112)

Assignees

• Semiconductor Energy Lab

Inventors

• Suzuki Masato
• Ohsawa Nobuharu
• Shitagaki Satoko
• Osaka Harue

Classifications

• C09K11/06 Primary

  containing organic luminescent materials · CPC title

• H01L51/0056 Primary

  Electricity · mapped topic

• C09K2211/185

  of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd · CPC title

• C07D241/38

  with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms · CPC title

• H01L51/5072

  Electricity · mapped topic