OXYGEN-CONTAINING FUSED RING DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME

• US 20130306958A1
• Filed: 11/22/2011
• Published: 11/21/2013
• Est. Priority Date: 11/22/2010
• Status: Active Grant

• Current Assignee: Idemitsu Kosan Company Limited
• Original Assignee: Idemitsu Kosan Company Limited
• Inventors: Ito, Hirokatsu, Kawamura, Masahiro, Kawamura, Yuichiro, Mizuki, Yumiko, Saito, Hiroyuki
• Granted Patent: US 9,484,540 B2
• Time in Patent Office: Days
• US Class Current: 257/40
• CPC Class Codes: C07D 405/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C07D 493/04 Ortho-condensed systems
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1011 Condensed systems
• 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 50/165 comprising dopants
• CPC Class Codes: H10K 50/18 Carrier blocking layers
• CPC Class Codes: H10K 85/623 containing five rings, e.g. pentacene
• CPC Class Codes: H10K 85/626 containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
• 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 85/636 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
• CPC Class Codes: H10K 85/6574 comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes

Abstract

An oxygen-containing fused ring derivative represented by the following formula (1) wherein Ar¹ is an m-valent fused ring group in which four or more rings including one or more rings selected from a furan ring and a pyran ring are fused and HAr is any of the nitrogen-containing heterocyclic group represented by the following formulas (2) to (5):

Claims

1. An oxygen-comprising fused ring of formula (1):

2. The oxygen-comprising fused ring of claim 1, wherein Ar₁ has formula (6):

3. The oxygen-comprising fused ring of claim 1, wherein Ar₁ is a fused ring group of formula (9) or (10):

4. The oxygen-comprising fused ring of claim 1, wherein Ar₁ is a fused ring group of formula (11), (12), (13), or (14):

5. The oxygen-comprising fused ring of claim 1, wherein Ar₁ is a fused ring group of formula (15):

6. The oxygen-comprising fused ring of claim 1, wherein m is 1 and n is 1.

7. The oxygen-comprising fused ring of claim 1, which is a material for an organic electroluminescence device.

8. The oxygen-comprising fused ring of claim 7, wherein the material for an organic electroluminescence device is a material for a blocking layer.

9. An organic electroluminescence device, comprising, in the following sequence:

an anode;

an emitting layer;

a blocking layer; and

a cathode,

wherein the blocking layer comprises the oxygen-comprising fused ring of claim 1.

10. The organic electroluminescence device of claim 9, further comprising:

an electron-injecting layer and/or an electron-transporting layer between the blocking layer and the cathode, wherein at least one layer of the electron-injecting layer and the electron-transporting layer comprises a hetero ring-comprising derivative.

11. The organic electroluminescence device of claim 10, wherein the electron-injecting layer and/or the electron-transporting layer comprises an electron-donating dopant.

12. The organic electroluminescence device of claim 11, wherein the electron-donating dopant is at least one selected from the group consisting of an alkali metal, an alkaline-earth metal, a rare earth metal, an oxide of an alkali metal, a halide of an alkali metal, an oxide of an alkaline-earth metal, a halide of an alkaline-earth metal, an oxide of a rare earth metal, a halide of a rare earth metal, an organic complex of an alkali metal, an organic complex of an alkaline-earth metal, and an organic complex of a rare earth metal.

13. The organic electroluminescence device of claim 9, wherein the emitting layer comprises an anthracene of formula (16):

14. The organic electroluminescence device of claim 13, wherein the emitting layer comprising the anthracene of formula (16) is in contact with the blocking layer comprising the oxygen-comprising fused ring.

15. The organic electroluminescence device of claim 9, wherein the emitting layer comprises a fluorescent dopant having a main peak wavelength of 500 nm or less.