Organic electroluminescent materials and devices
US10991895B2 · kind B2 · utility
0Cited by
31References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2016 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Jul 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Ir phenyl parazolepyrazole complexes substituted with one or more strong electron withdrawing groups such as cyano groups resulted in enhancing the metal to ligand charge transfer (MLCT) which in turn resulted in enhanced emission efficiency and red shifted emission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.