Organic Electroluminescent Device

• US 20080001530A1
• Filed: 09/20/2005
• Published: 01/03/2008
• Est. Priority Date: 09/22/2004
• Status: Active Grant

• Current Assignee: UDC Ireland Limited
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Murakami, Takeshi, Ise, Toshihiro, Sano, Satoshi, Ichijima, Seiji
• Granted Patent: US 7,947,383 B2
• Time in Patent Office: Days
• US Class Current: 313/504
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• 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: C09K 2211/1092 containing sulfur as the only heteroatom
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• 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 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/311 Phthalocyanine
• CPC Class Codes: H10K 85/324 comprising aluminium, e.g. Alq3
• CPC Class Codes: H10K 85/346 comprising platinum
• CPC Class Codes: H10K 85/633 comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
• CPC Class Codes: H10K 85/657 Polycyclic condensed heteroaromatic hydrocarbons
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

An organic electroluminescent device having a pair of electrodes and at least one organic layer including a light-emitting layer interposed between the pair of electrodes, in which the organic layer contains at least one compound represented by formula (I):

wherein Z¹ and Z² each independently represent a nitrogen-containing heterocycle coordinated with the platinum through a nitrogen atom; Q¹ and Q² each independently represent a group bonded with the platinum through a carbon atom, an oxygen atom, a sulfur atom, a nitrogen atom or a phosphorous atom; Q¹ and Q² each represent a structure different from each other; L¹ and L² each independently represent a single bond or a linking group; and n represents 0 or 1.

Claims

1. An organic electroluminescent device having a pair of electrodes and at least one organic layer including a light-emitting layer interposed between the pair of electrodes, wherein the organic layer contains at least one compound represented by formula (I):

2. The organic electroluminescent device according to claim 1, wherein the above Q¹ and Q² each independently are a group represented by a formula selected from the group consisting of formulae (A1), (B1), (C1), (D1), (E1), (F1) and (G1):

3. The organic electroluminescent device according to claim 1, wherein the compound represented by formula (I) is a compound represented by formula (II):

4. The organic electroluminescent device according to claim 3, wherein the above Q¹ and Q² each independently are a group represented by a formula selected from the group consisting of formulae (A1), (B1), (C1), (D1), (E1), (F1) and (G1):

5. The organic electroluminescent device according to claim 1, wherein the compound represented by formula (I) is a compound represented by formula (III):

6. The organic electroluminescent device according to claim 5, wherein the above Q¹ and Q² each independently are a group represented by a formula selected from the group consisting of formulae (A1), (B1), (C1), (D1), (E1), (F1) and (G1):

7. The organic electroluminescent device according to claim 1, wherein the compound represented by formula (I) is a compound represented by formula (IV):

8. The organic electroluminescent device according to claim 1, wherein the compound represented by formula (I) is a compound represented by formula (V):

9. The organic electroluminescent device according to claim 1, wherein the compound represented by formula (I) is a compound represented by formula (VI):

10. The organic electroluminescent device according to claim 1, wherein the compound represented by formula (I) is a compound represented by formula (VII):

11. The organic electroluminescent device according to claim 1, wherein the compound represented by formula (I) is a compound represented by formula (VIII):

12. The organic electroluminescent device according to claim 1, wherein at least one of the compound represented by formula (I) is contained in the light-emitting layer.

13. The organic electroluminescent device according to claim 1, wherein at least one of the compound represented by formula (I) and at least one host material are contained in the light-emitting layer.