AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT

• US 20150325794A1
• Filed: 12/05/2013
• Published: 11/12/2015
• Est. Priority Date: 12/07/2012
• Status: Active Grant

• Current Assignee: Idemitsu Kosan Company Limited
• Original Assignee: Idemitsu Kosan Company Limited
• Inventors: NISHIMURA, Kazuki, ITO, Mitsunori, INOUE, Tetsuya
• Granted Patent: US 9,954,178 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C07D 403/04 directly linked by a ring-member-to-ring-member bond
• CPC Class Codes: C07D 403/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1007 Non-condensed systems
• CPC Class Codes: C09K 2211/1011 Condensed systems
• CPC Class Codes: C09K 2211/1014 bridged by heteroatoms, e.g. N, P, Si or B
• CPC Class Codes: C09K 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1059 containing three nitrogen atoms as heteroatoms
• CPC Class Codes: H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 2102/103 comprising indium oxides, e.g. ITO
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/636 comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom
• CPC Class Codes: H10K 85/654 comprising only nitrogen as heteroatom H10K85/652 takes precedence
• CPC Class Codes: H10K 85/6572 comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole

Abstract

An aromatic amine derivative represented by the following formula (1). In the formula, Ar¹ and Ar² are independently a substituted or unsubstituted aryl group including 6 to 60 ring carbon atoms; L¹ is a substituted or unsubstituted arylene group including 6 to 60 ring carbon atoms; L² is a single bond or a substituted or unsubstituted arylene group including 6 to 60 ring carbon atoms; R¹ and R² are independently a substituted or unsubstituted aryl group including 6 to 60 ring carbon atoms or the like; n is an integer of 0 to 3; m is an integer of 0 to 4; X¹ to X⁵ are independently a nitrogen atom or CR³; provided that at least one of X¹ to X⁵ are a nitrogen atom; R³ is a hydrogen atom, a substituted or unsubstituted aryl group including 6 to 60 ring carbon atom or the like.

Claims

1. An aromatic amine derivative represented by the following formula (1):

2. The aromatic amine derivative according to claim 1, wherein at least one of X¹, X² and X³ is a nitrogen atom.

3. The aromatic amine derivative according to claim 1, wherein at least two of X¹ to X⁵ are a nitrogen atom.

4. The aromatic amine derivative according to claim 1, wherein L² is a single bond.

5. The aromatic amine derivative according to claim 1, wherein two or three of X¹ to X⁵ are a nitrogen atom.

6. The aromatic amine derivative according to claim 1, wherein Ar¹ and Ar² do not comprise a fluorene structure.

7. The aromatic amine derivative according to claim 1, that is represented by the following formula (1-1) or (1-2):

8. A material for an organic electroluminescent device comprising the aromatic amine derivative according to claim 1.

9. An organic electroluminescence device comprising:

an anode;

a cathode; and

one or more organic layers including an emitting layer between the anode and the cathode,

wherein at least one of the organic layers comprises the aromatic amine derivative according to claim 1.

10. The organic electroluminescence device according to claim 9, wherein the aromatic amine derivative is contained in the emitting layer.

11. The organic electroluminescence device according to claim 9, wherein the emitting layer comprises a phosphorescent emitting material.