Tandem-carbene phosphors
US12342716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2021 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Mar 7, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds comprising a first ligand and a second ligand; wherein the first ligand coordinates to a first metal through a first metal-carbene bond; the second ligand coordinates to a second metal through a second metal-carbene bond; the second ligand also coordinates to the first metal; the first ligand can link to the second ligand to form a multidentate ligand; and the first metal and the second metal are each independently selected from the group consisting of Au, Ag, and Cu can act as electron acceptors in tandem to increase the energy separation between the ground and excited state, which is higher than those found in analogous monometallic complexes. These compounds should find application as luminescent materials in organic light emitting diodes (OLEDs).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.