Iridium complexes and their applications, as well as organic electroluminescent devices
US11502260B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2017 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Dec 14, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Irridium complexes with molecular formula of L3Ir, together with application thereof and organic electroluminescent devices, wherein Ir is the central metal atom and L is a ligand. The structure of these complexes is of the following formula (I):Ar is selected from substituted or unsubstituted aryl groups with 6 to 30 carbon atoms, and substituted or unsubstituted heterocyclic aryl groups with 4 to 30 carbon atoms. R1 to R7 are each independently selected from atoms or groups described herein. The substituent group on above-mentioned Ar or R1 to R7 is independently selected from F, Cl, Br, I, CHO, CN, substituted or unsubstituted alkyl or cycloalkyl groups with 1 to 30 carbon atoms, fluoroalkyl groups, alkoxy groups, and thioalkoxy groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.