Heteroleptic iridium complexes as dopants
US12408242B2 · kind B2 · utility
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Key dates
| Filing date | Dec 19, 2023 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Dec 19, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.