Material for organic electroluminescent device and organic electroluminescent device including the same

Patent metadata

Field	Value
Publication number	US-2016118596-A1
Application number	US-201514919627-A
Country	US
Kind code	A1
Filing date	Oct 21, 2015
Priority date	Oct 28, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

A material for an organic electroluminescent device having high emission efficiency and long life, and an organic electroluminescent device including the same. The material for an organic electroluminescent device may be represented by Formula (1).

First claim

What is claimed is:

1 . A material for an organic electroluminescent (EL) device, represented by Formula 1:

wherein in Formula 1,
R 1 to R 11 are each independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms for forming a ring, an alkyl group having 1 to 15 carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, hydrogen or deuterium;
Ar 1 and Ar 2 are each independently an aryl group having 6 to 16 carbon atoms for forming a ring, or an alkyl group having 1 to 15 carbon atoms; and
L is a direct linkage, a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group.

2 . The material for an organic EL device of claim 1 , wherein Ar 1 and Ar 2 in Formula 1 are each independently selected from the group consisting of a phenyl group, a biphenyl group, a naphthyl group, a phenylnaphthyl group and a naphthylphenyl group.

3 . The material for an organic EL device of claim 1 , wherein L in Formula 1 is a direct linkage, a phenylene group, or a biphenylene group.

4 . The material for an organic EL device of claim 1 , wherein R 10 in Formula 1 is a hydrogen atom.

5 . The material for an organic EL device of claim 1 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 1 to 6:

6 . The material for an organic EL device of claim 1 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 7 to 12:

7 . The material for an organic EL device of claim 1 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 13-19:

8 . The material for an organic EL device of claim 1 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 20 to 22:

9 . An organic electroluminescent (EL) device comprising:
an anode; an emission layer on the anode; and a plurality of stacking layers between the anode and the emission layer, wherein at least one of the plurality of stacking layers comprises a material for an organic EL device represented by Formula 1:

wherein in Formula 1,
R 1 to R 11 are each independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms for forming a ring, an alkyl group having 1 to 15 carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, hydrogen or deuterium;
Ar 1 and Ar 2 are each independently an aryl group having 6 to 16 carbon atoms for forming a ring, or an alkyl group having 1 to 15 carbon atoms; and
L is a direct linkage, a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group.

10 . The organic EL device of claim 9 , wherein the plurality of stacking layers comprises a hole transport layer, and
wherein the hole transport layer comprises the material represented by Formula 1.

11 . The organic EL device of claim 9 , wherein Ar 1 and Ar 2 in Formula 1 are each independently selected from the group consisting of a phenyl group, a biphenyl group, a naphthyl group, a phenylnaphthyl group and a naphthylphenyl group.

12 . The organic EL device of claim 9 , wherein L in Formula 1 is one of a direct linkage, a phenylene group or a biphenylene group.

13 . The organic EL device of claim 9 , wherein R 10 in Formula 1 is hydrogen.

14 . The organic EL device of claim 9 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 1 to 6:

15 . The organic EL device of claim 9 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 7 to 12:

16 . The organic EL device of claim 9 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 13 to 19:

17 . The organic EL device of claim 9 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 20 to 22:

18 . An organic electroluminescent (EL) device comprising:
an anode; an emission layer on the anode; and a plurality of stacking layers between the anode and the emission layer, wherein the emission layer comprises a material represented by Formula 1 as a host material:

wherein in Formula 1,
R 1 to R 11 are each independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms for forming a ring, an alkyl group having 1 to 15 carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, hydrogen or deuterium;
Ar 1 and Ar 2 are each independently an aryl group having 6 to 16 carbon atoms for forming a ring, or an alkyl group having 1 to 15 carbon atoms; and
L is a direct linkage, a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group.

19 . The organic EL device of claim 18 , wherein the material for an organic EL device of Formula 1 is one selected from the group consisting of compounds 1 to 19:

20 . The organic EL device of claim 18 , wherein the material represented by Formula 1 is one selected from the group consisting of compounds 20 to 22:

Assignees

• Samsung Display Co Ltd

Inventors

• Sakamoto Naoya
• Itoi Hiroaki
• Nakano Hiromi
• Miyake Hideo
• Takada Ichinori

Classifications

• H01L51/5012

  Electricity · mapped topic

• H01L51/0061 Primary

  Electricity · mapped topic

• C07D307/91 Primary

  Dibenzofurans; Hydrogenated dibenzofurans · CPC title

• C09K11/025

  non-luminescent particle coatings or suspension media · CPC title

• H01L51/0073

  Electricity · mapped topic