MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME, AND ELECTRONIC DEVICE

• US 20160141515A1
• Filed: 06/11/2014
• Published: 05/19/2016
• Est. Priority Date: 06/11/2013
• Status: Abandoned Application

• Current Assignee: Idemitsu Kosan Company Limited
• Original Assignee: Idemitsu Kosan Company Limited
• Inventors: HAYAMA, Tomoharu, HAKETA, Tasuku, KAWAMURA, Masahiro, MIZUKI, Yumiko, ITO, Hirokatsu
• Application Number:
  US14/897,553
• Publication Number:
  US 20160141515A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C07D 491/048 the oxygen-containing ring being five-membered
• CPC Class Codes: C07D 491/147 the condensed system containing one ring with oxygen as ring hetero atom and two rings with nitrogen as ring hetero atom
• CPC Class Codes: C07D 519/00 Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00
• 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 2211/1033 with oxygen
• CPC Class Codes: C09K 2211/1037 with sulfur
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1048 with oxygen
• CPC Class Codes: C09K 2211/1059 containing three nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1062 with oxygen
• CPC Class Codes: C09K 2211/1088 containing oxygen as the only heteroatom
• CPC Class Codes: C09K 2211/1092 containing sulfur as the only heteroatom
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/16 Electron transporting layers
• CPC Class Codes: H10K 85/615 Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
• CPC Class Codes: H10K 85/622 : containing four rings, e.g. pyrene
• CPC Class Codes: H10K 85/626 : containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene
• CPC Class Codes: H10K 85/633 : comprising polycyclic condensed aromatic 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 85/657 : Polycyclic condensed heteroaromatic hydrocarbons
• 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

A material for an organic electroluminescence device including a compound represented by any of the formulas (1) to (3):

Claims

1. A material for an organic electroluminescence device comprising a compound represented by any of the following formulas (1) to (3):

2. The material for an organic electroluminescence device according to claim 1, wherein

in the formula (1), at least one of A₁ to A₈ is CR₁;

in the formula (2), at least one of A₁ to A₃ and A₉ to A₁₃ is CR₁;

in the formula (3), at least one of A₁ to A₃ and A₁₄ to A₁₈ is CR₁; and

at least one of R₁s is a substituted or unsubstituted aromatic hydrocarbon group including 6 to 60 ring carbon atoms or a substituted or unsubstituted heterocyclic group including 3 to 60 ring atoms.

3. The material for an organic electroluminescence device according to claim 1, wherein at least two of A₁ to A₈, B₁ and B₂ in the formula (1), at least two of A₁ to A₃, A₉ to A₁₃, B₁ and B₂ in the formula (2), and at least two of A₁ to A₃, A₁₄ to A₁₈, B₁ and B₃ in the formula (3) are a nitrogen atom N.

4. The material for an organic electroluminescence device according to claim 1, wherein at least one of R₁s comprises a structure represented by the following formula (5):

5. The material for an organic electroluminescence device according to claim 4, which comprises a compound represented by any of the following formulas (1-1) to (3-1):

6. The material for an organic electroluminescence device according to claim 5, wherein the compounds represented by the formula (1-1) to (3-1) are independently compounds represented by the following formulas (1-1′

) to (3-1′

);

7. The material for an organic electroluminescence device according to claim 4, wherein R₂₀ is a substituted or unsubstituted aryl group including 6 to 50 ring carbon atoms or a substituted or unsubstituted heteroaryl group including 5 to 50 ring atoms.

8. The material for an organic electroluminescence device according to claim 1, wherein at least one of R₁s comprises a structure represented by the following formula (6):

9. The material for an organic electroluminescence according to claim 8, which comprises a compound represented by any of the formulas (1-2) to (3-2):

10. The material for an organic electroluminescence device according to claim 1, wherein B₁, B₂, B₃, B_1a, B_2a and B_3a are independently a nitrogen atom N or C—

H.

11. An organic electroluminescence device which comprises a cathode, an anode, and at least one organic thin film layer including an emitting layer disposed between the cathode and the anode, wherein at least one of said organic thin film layers comprises the material for an organic electroluminescence device according to claim 1.

12. The organic electroluminescence device according to claim 11, wherein the emitting layer comprises the material for an organic electroluminescence device.

13. The organic electroluminescence device according to claim 11, which further comprises an anode-side organic thin film layer disposed between the anode and the emitting layer, and the anode-side organic thin film layer contains the material for an organic electroluminescence device.

14. The organic electroluminescence device according to claim 11, which further comprises a cathode-side organic thin film layer disposed between the cathode and the emitting layer, and the cathode-side organic thin film layer contains the material for an organic electroluminescence device.

15. The organic electroluminescence device according to claim 11, wherein the emitting layer contains a fluorescent emitting material.

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

17. The organic electroluminescence device according to claim 16, wherein the phosphorescent emitting material is an ortho-metalated complex of a metal atom selected from iridium (Ir), osmium (Os) and platinum (Pt).

18. An electronic apparatus comprising the organic electroluminescence device according to claim 11.