Organic electroluminescent materials and devices
US10862055B2 · kind B2 · utility
2Cited by
31References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2018 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Feb 15, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel ligands for cyclometalated complexes that provide near-infrared emission are disclosed. The ligands contain strong electron-donating side chains such as alkoxy or alkylamine on a phenyl or naphthyl moiety which is linked by a covalent bond to the metal. This combination provides a significant red shift of the emission of the emitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.