Cyclic tertiary amine compound and organic electroluminescent device containing the compound

• US 20020058155A1
• Filed: 09/26/2001
• Published: 05/16/2002
• Est. Priority Date: 09/28/2000
• Status: Active Grant

• Current Assignee: Chisso Corporation
• Original Assignee: Chisso Corporation
• Inventors: Furukawa, Kenji, Uchida, Manabu, Yokoi, Hajime, Nakano, Takaharu, Guofang, Wang
• Granted Patent: US 6,761,981 B2
• Time in Patent Office: Days
• US Class Current: 428/690
• CPC Class Codes: C07D 257/10 condensed with carbocyclic rings or ring systems
• CPC Class Codes: C07D 273/00 Heterocyclic compounds containing rings having nitrogen and oxygen atoms as the only ring hetero atoms, not provided for by groups C07D261/00 - C07D271/00
• CPC Class Codes: C07D 285/00 Heterocyclic compounds containing rings having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by groups C07D275/00 - C07D283/00
• CPC Class Codes: C07D 409/14 containing three or more hetero rings
• 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 85/324 comprising aluminium, e.g. Alq3
• CPC Class Codes: H10K 85/631 Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
• CPC Class Codes: H10K 85/633 comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
• CPC Class Codes: H10K 85/636 comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom
• CPC Class Codes: H10K 85/653 comprising only oxygen as heteroatom
• CPC Class Codes: H10K 85/655 comprising only sulfur as heteroatom
• CPC Class Codes: H10K 85/657 Polycyclic condensed heteroaromatic hydrocarbons
• CPC Class Codes: H10K 85/6576 comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

The present invention relates to a cyclic tertiary amine compound represented by a formula (1) and an organic luminescent device.

wherein A represents an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted heterocyclic group, and four As may be all the same or partly different; Y¹ represents a substituted or unsubstituted arylene group, or a substituted or unsubstituted heterocyclic divalent group; Y² represents a group represented by a formula (2), a substituted or unsubstituted condensed ring arylene group, or a substituted or unsubstituted heterocyclic divalent group,

wherein R₁ to R₈ in the formula (2) independently represents a hydrogen atom, a halogen atom, an alkyl or alkoxy group having 1 to 6 carbon atoms, an aryl group or a heterocyclic group; and Z represents single bond, an arylene group, —CH₂—, —CH═CH—, —C≡C—, —C(CH₃)₂—, —CO—, —O—, —S— or —SO₂—.

Use of the cyclic tertiary amine compound as a hole transport material, a hole injection material or an organic electroluminescent material can provide organic EL devices having high luminous efficiency and a long service life.

Claims

1. A cyclic tertiary amine compound represented by a formula (1),

2. An organic electroluminescent device comprising a cyclic tertiary amine according to claim 1.

3. An organic electroluminescent device according to claim 2, wherein the cyclic tertiary amine compound according to claim 1 is contained in a hole transport layer.

4. An organic electroluminescent device according to claim 2, wherein the cyclic tertiary amine compound according to claim 1 is contained in a luminescent layer.

5. An organic electroluminescent device according to claim 2, wherein the cyclic tertiary amine compound according to claim 1 is contained in a hole injection layer.

6. An organic electroluminescent material comprising a cyclic tertiary amine compound according to claim 1.

7. A hole transport material comprising a cyclic tertiary amine compound according to claim 1.