Iridium complexes with aza-benzo fused ligands
US8946697B1 · kind B1 · utility
53Cited by
31References
43Claims
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Key dates
| Filing date | Sep 16, 2013 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Sep 16, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. Iridium complexes containing aza-benzo fused ligands in which an aryl group is conjugated to the aza ring of the specific aza-dibenzofuran ring system results in the formation of yellow phosphorescent compounds with superior device stability and efficiency. These complexes are useful as light emitters when incorporated into OLEDs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.