Composition for organic electroluminescent element, method for manufacturing organic electroluminescent element, and organic electroluminescent element

• US 20070059551A1
• Filed: 09/11/2006
• Published: 03/15/2007
• Est. Priority Date: 09/14/2005
• Status: Abandoned Application

• Current Assignee: UDC Ireland Limited
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Yamazaki, Kazuki
• Application Number:
  US11/518,303
• Publication Number:
  US 20070059551A1
• Time in Patent Office: Days
• US Class Current: 428/690
• 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 2211/1029 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 2211/1059 containing three nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1092 containing sulfur as the only heteroatom
• CPC Class Codes: C09K 2211/182 of the rare earth metals, i.e. Sc, Y or lanthanide
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• CPC Class Codes: C09K 2211/186 of the light metals other than alkali metals and alkaline earth metals, i.e. Be, Al or Mg
• CPC Class Codes: C09K 2211/187 of the iron group metals, i.e. Fe, Co or Ni
• CPC Class Codes: C09K 2211/188 of other metals not provided for in one of the previous groups
• 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 50/125 specially adapted for multicolour light emission, e.g. for emitting white light
• CPC Class Codes: H10K 71/135 using ink-jet printing
• CPC Class Codes: H10K 85/331 Metal complexes comprising an iron-series metal, e.g. Fe, Co, Ni
• CPC Class Codes: H10K 85/342 : comprising iridium
• CPC Class Codes: H10K 85/344 : comprising ruthenium
• CPC Class Codes: H10K 85/346 : comprising platinum
• CPC Class Codes: H10K 85/348 : comprising osmium

Abstract

A composition for an organic electroluminescent element used for forming a pattern by an ink jet method, the composition having at least one metal complex having a tridentate or higher-dentate ligand. Also provided are a method for manufacturing an organic electroluminescent element including forming an organic compound layer by discharging the composition for an organic electroluminescent element in a pattern with an ink jet apparatus, a method for manufacturing an organic electroluminescent element including using a transfer material having an organic compound layer containing a metal complex having a tridentate or higher-dentate ligand, and organic electroluminescent elements manufactured by these methods.

Claims

1. A composition for an organic electroluminescent element capable of forming a pattern by an ink jet method, comprising at least one metal complex having a tridentate or higher-dentate ligand.

2. The composition according to claim 1, wherein the tridentate or higher ligand is a chain ligand.

3. The composition according to claim 1, wherein the metal complex having a tridentate or higher-dentate ligand is a compound represented by the following formula (I):

4. The composition according to claim 1, wherein the metal complex having a tridentate or higher-dentate ligand is a compound represented by the following formula (II):

5. The composition according to claim 1, wherein the metal complex having a tridentate or higher-dentate ligand is a compound represented by the following formula (III):

6. The composition according to claim 1, comprising a polymer dispersion liquid that contains a polymer for dispersing the metal complex having a tridentate or higher-dentate ligand.

7. A method for manufacturing an organic electroluminescent element, the method comprising forming a first electrode on a substrate, forming an organic compound layer by discharging the composition of claim 1 in a pattern onto a side of the substrate that has the first electrode thereon using an ink jet apparatus, and forming a second electrode on the organic compound layer.

15. An organic electroluminescent element manufactured by using the method of claim 7.

8. A method for manufacturing an organic electroluminescent element, the method comprising forming a first electrode on a substrate, superposing a transfer material having an organic compound layer containing a metal complex having a tridentate or higher-dentate ligand provided on a temporary support, on a side of the substrate that has the first electrode thereon, applying heat and/or pressure thereto, peeling away the temporary support so as to transfer the organic compound layer onto the side of the substrate that has the first electrode thereon, and forming a second electrode on the organic compound layer.

9. The method for manufacturing an organic electroluminescent element according to claim 8, wherein the organic compound layer containing the metal complex having a tridentate or higher-dentate ligand is formed on the temporary support by using a liquid containing the metal complex having a tridentate or higher-dentate ligand.

10. The method for manufacturing an organic electroluminescent element according to claim 8, wherein the tridentate or higher-dentate ligand is a chain ligand.

11. The method for manufacturing an organic electroluminescent element according to claim 8, wherein the metal complex having a tridentate or higher-dentate ligand is a compound represented by the following formula (I):

12. The method for manufacturing an organic electroluminescent element according to claim 8, wherein the metal complex having a tridentate or higher-dentate ligand is a compound represented by the following formula (II):

13. The method for manufacturing an organic electroluminescent element according to claim 8, wherein the metal complex having a tridentate or higher-dentate ligand is a compound represented by the following formula (III):

14. The method for manufacturing an organic electroluminescent element according to claim 9, wherein the liquid containing the metal complex containing a tridentate or higher-dentate ligand is a polymer dispersion liquid that contains a polymer for dispersing the metal complex.

16. An organic electroluminescent element manufactured by using the method of claim 8.