ORGANOMETALLIC COMPLEX AND ORGANIC LIGHT-EMITTING ELEMENT USING SAME

• US 20090039776A1
• Filed: 07/25/2008
• Published: 02/12/2009
• Est. Priority Date: 08/09/2007
• Status: Abandoned Application

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Ooishi, Ryota, Yamada, Naoki, Nakasu, Minako, Kamatani, Jun, Yamaguchi, Tomona
• Application Number:
  US12/179,899
• Publication Number:
  US 20090039776A1
• Time in Patent Office: Days
• US Class Current: 313/504
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• 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 50/14 Carrier transporting layers
• CPC Class Codes: H10K 85/342 comprising iridium
• CPC Class Codes: H10K 85/633 comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom

Abstract

An organometallic complex and an organic light-emitting element containing the complex which has a very high efficiency, a high luminance, and durability. The organic light-emitting element has an anode, a cathode, and a layer including an organic compound sandwiched between the anode and cathode. The layer containing the organic compound includes at least one organometallic complex represented by General Formula [I] below.

Claims

1. An organometallic complex represented by General Formula [I] below:

wherein in Formula [I], M is iridium, platinum, or gold, A is a substituted or unsubstituted aryl group, X is a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, or a cyano group. R₁ and R₂ are the same or different, and are each a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, an amino group, a cyano group, a halogen atom, or, R₁ and R₂ may be bonded to each other to form a ring, L is an optionally substituted monoanionic bidentate ligand, a is integer of 1 to 3, b is integer of 0 to 2, and when b is 2, each L may be the same or different.

2. The organometallic complex according to claim 1, wherein M is iridium or platinum.

3. The organometallic complex according to claim 1, wherein A is a substituted or unsubstituted phenyl group.

4. The organometallic complex according to claim 1, wherein X is a substituted or unsubstituted alkyl group.

5. The organometallic complex according to claim 1, wherein b is 0.

6. An organic light-emitting element comprising:

an anode and a cathode; and

a layer comprising an organic compound sandwiched between the anode and the cathode, wherein at least one kind of the organometallic complex according to claim 1 is contained in the layer comprising the organic compound.

7. The organic light-emitting element according to claim 6, wherein the organometallic complex is contained in a light-emitting layer.