Phosphorescent compounds and devices comprising the same

• US 6,835,469 B2
• Filed: 10/17/2001
• Issued: 12/28/2004
• Est. Priority Date: 10/17/2001
• Status: Expired due to Term

• Current Assignee: The Trustees of Princeton University (Princeton University)
• Original Assignee: Universal Display Corporation, University of Southern California
• Inventors: Knowles, David B., Thompson, Mark E., Kwong, Raymond C.
• Primary Examiner(s): YAMNITZKY, MARIE ROSE
• Application Number:
  US09/981,496
• Publication Number:
  US 20030072964A1
• Time in Patent Office: 1,168 Days
• Field of Search: 428/690, 428/917, 313/504, 313/506, 257/88, 257/102, 257/103, 546/4, 546/10, 252/301.16
• US Class Current: 428/690
• CPC Class Codes: C07D 215/04 with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to the ring carbon atoms
• CPC Class Codes: C07F 13/00 Compounds containing elements of Groups 7 or 17 of the Periodic Table
• CPC Class Codes: C07F 15/002 Osmium compounds
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C07F 15/0046 Ruthenium compounds
• CPC Class Codes: C07F 15/0086 Platinum compounds
• 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 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• CPC Class Codes: H10K 50/00 Organic light-emitting devices integrated devices or assemblies of multiple devices H10K59/00, H10K65/00; organic semiconductor lasers H01S5/36
• CPC Class Codes: H10K 85/341 Transition metal complexes, e.g. Ru(II)polypyridine complexes H10K85/331 takes precedence
• CPC Class Codes: H10K 85/342 comprising iridium
• CPC Class Codes: H10K 85/344 comprising ruthenium
• CPC Class Codes: Y10S 428/917 Electroluminescent

Abstract

Phosphorescent organometallic complexes comprising phenylquinolinato ligands are provided. High efficiency organic light emitting devices comprising these compounds are also described.

Claims

1. A compound of the formula:

2. An organic light emitting device comprising an anode, a cathode and an emissive layer, wherein the emissive layer is between the anode and the cathode, and wherein the emissive layer comprises a compound of the formula: