Phosphorescent tetradentate metal complexes having modified emission spectra

• US 9,899,614 B2
• Filed: 08/21/2014
• Issued: 02/20/2018
• Est. Priority Date: 06/10/2013
• Status: Active Grant

• Current Assignee: Universal Display Corporation, Arizona Board of Regents (University of Arizona)
• Original Assignee: Universal Display Corporation, Arizona Board of Regents (University of Arizona)
• Inventors: Li, Jian, Li, Guijie, Brooks, Jason
• Primary Examiner(s): McDowell, Brian E
• Application Number:
  US14/913,306
• Publication Number:
  US 20160285015A1
• Time in Patent Office: 1,279 Days
• CPC Class Codes: A61K 31/4427 containing further heterocyclic ring systems
• 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 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/346 comprising platinum
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

Multidentate metal complexes useful as phosphorescent emitters in display and lighting applications have the structures as described herein. Multidentate metal complexes and compositions including one or more of the complexes described herein can be useful as emitters in organic light emitting diodes (OLEDs), displays and lighting applications, and photovoltaic devices. Generally, a chemical structural change will affect the electronic structure of the compounds, which thereby affects the optical properties of the compounds (e.g., emission and absorption spectra). Thus, the compounds described herein can be tailored or tuned to a particular emission or absorption energy. In some aspects, the optical properties of the compounds disclosed herein can be tuned by varying the structure of the ligand surrounding the metal center.

Claims

1. A composition comprising one or more of the compounds selected from:

2. A device comprising the composition of claim 1.

3. The device of claim 2, wherein the device comprises a full color display.

4. The device of claim 2, wherein the device is a photovoltaic device.

5. The device of claim 2, wherein the device is a luminescent display device.

6. The device of claim 2, wherein the device comprises an organic light emitting diode (OLED).

7. The device of claim 6, wherein the device comprises a phosphorescent organic light emitting diode.

8. The device of claim 6, wherein the device is a phosphorescent organic light emitting diode.

9. A light emitting device comprising the composition of claim 1.

10. A compound having the following structure:

11. A compound having the following structure: