Phenyl and fluorenyl substituted phenyl-pyrazole complexes of Ir
US7338722B2 · kind B2 · utility
809Cited by
15References
55Claims
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Key dates
| Filing date | Mar 24, 2004 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Feb 18, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An organic light emitting device is provided, having an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include the following compound:wherein The emissive layer may also include a compound having a metal bonded to at least two ligands, in which one ligand has a triplet energy corresponding to a wavelength that is at least 80 nm greater than the wavelength corresponding to the triplet energy of other ligands. Each ligand may be organometallic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.