Material for organic electroluminescence device and organic electroluminescence device using the same

Patent metadata

Field	Value
Publication number	US-9537103-B1
Application number	US-201514826211-A
Country	US
Kind code	B1
Filing date	Aug 14, 2015
Priority date	Aug 14, 2015
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

The present invention discloses an organic material is represented by the following formula(A), the organic EL device employing the material as light emitting host or dopant of emitting layer, hole blocking layer(HBL), electron blocking layer(EBL), electron transport layer(ETL) and hole transport layer (HTL) can display good performance.

wherein A represents a substituted or unsubstituted fused ring hydrocarbon units with two to three rings, m represents an integer of 0 to 10, G, Rs and R 1 to R 3 are the same definition as described in the present invention.

First claim

The invention claimed is:

1. A material with a general formula(A) as follows:

wherein A represents a substituted or unsubstituted fused ring hydrocarbon units with two to three rings, m represents an integer of 0 to 10, G is selected from the group consisting of a hydrogen, a halide, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroaryl group having 3 to 60 carbon atoms, and provided that G represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted fluorene group, a substituted or unsubstituted benzofluorene group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthracenyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted chrysenyl group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted heteroarylamine group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted biscarbazolyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted triazinyl group, a substituted or unsubstituted diazinyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted phenanthroline group, a substituted or unsubstituted dihydroacridine group, a substituted or unsubstituted phenothiazine group, a substituted or unsubstituted phenoxazine group and a substituted or unsubstituted dihydrophenazine group; Rs represents a hydrogen, a halide or a substituent, R 1 to R 3 are independently selected from the group consisting of a hydrogen atom, a halide, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms.

2. The material according to claim 1 , wherein the G is represented by the following formulas:

3. The material according to claim 1 , wherein the material are represented by the following formula(1) to formula(9):

Wherein m represents an integer of 0 to 10, G is selected from the group consisting of a hydrogen, a halide, a substituted or unsubstituted aryl group having 6 to 60 carbon atoms or a substituted or unsubstituted heteroaryl group having 3 to 60 carbon atoms, and provided that the G represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted fluorene group, a substituted or unsubstituted benzofluorene group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted anthracenyl group, a substituted or unsubstituted phenanthrenyl group, a substituted or unsubstituted pyrenyl group, a substituted or unsubstituted chrysenyl group, a substituted or unsubstituted arylamine group, a substituted or unsubstituted heteroarylamine group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted biscarbazolyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted triazinyl group, a substituted or unsubstituted diazinyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted phenanthroline group, a substituted or unsubstituted dihydroacridine group, a substituted or unsubstituted phenothiazine group, a substituted or unsubstituted phenoxazine group and a substituted or unsubstituted dihydrophenazine group; Rs represents a hydrogen, a halide or a substituent, R 1 to R 3 are independently selected from the group consisting of a hydrogen atom, a halide, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms and a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms.

4. The material according to claim 3 , wherein the G is represented by the following formulas:

5. A organic electroluminescence device comprising a pair of electrodes consisting of a cathode and an anode, and between the pairs of electrodes comprising at least a light emitting layer, one or more layers of organic thin film layer, wherein the light emitting layer or the organic thin film layer comprising the material according to claim 1 .

6. The organic electroluminescence device according to claim 5 , wherein the light emitting layer comprising the material with a general formula(A) is a host material.

7. The organic electroluminescence device according to claim 5 , wherein the light emitting layer comprising the material with a general formula(A) is a fluorescent dopant material.

8. The organic electroluminescence device according to claim 5 , wherein the light emitting layer comprising the material with a general formula(A) is a thermally activated delayed fluorescence host material.

9. The organic electroluminescence device according to claim 5 , wherein the light emitting lay

Assignees

• Luminescence Tech Corp

Inventors

• Yen Feng-Wen

Classifications

• C09K2211/1014

  bridged by heteroatoms, e.g. N, P, Si or B · CPC title

• C09K2211/1011

  Condensed systems · CPC title

• C07C2603/94

  containing "free" spiro atoms · CPC title

• C09K2211/1059

  containing three nitrogen atoms as heteroatoms · CPC title

• H05B33/20

  characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded · CPC title