Metal-assisted delayed fluorescent emttters employing benzo-imidazo-phenanthridine and analogues

• US 10,516,117 B2
• Filed: 05/18/2018
• Issued: 12/24/2019
• Est. Priority Date: 05/19/2017
• Status: Active Grant

• Current Assignee: Arizona Board of Regents (University of Arizona)
• Original Assignee: Arizona Board of Regents (University of Arizona)
• Inventors: Li, Jian, Ji, Yunlong
• Primary Examiner(s): Kosack, Joseph R
• Application Number:
  US15/983,680
• Publication Number:
  US 20180337349A1
• Time in Patent Office: 585 Days
• CPC Class Codes: C07F 15/0033 Iridium compounds
• CPC Class Codes: C07F 15/006 Palladium compounds
• CPC Class Codes: C07F 15/0086 Platinum 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 2211/1074 containing more than three 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 50/854 comprising scattering means
• 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 85/346 comprising platinum

Abstract

Metal-assisted delayed fluorescent emitters employing benzo-imidazo-phenanthridine and analogues for full color displays and lighting applications.

Claims

1. A complex represented by General Formula VII:

2. A light emitting diode comprising the complex of claim 1.

3. A light emitting device comprising the light emitting diode of claim 2.

4. A complex selected from the group consisting of:

5. A light emitting diode comprising the complex of claim 4.

6. A light emitting device comprising the light emitting diode of claim 5.