Nanocomposite material made of a polymer-matrix comprising PEO- containing polymers and salts of luminescent polyanionic metal clusters
US11618829B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 30, 2018 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Jan 6, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention concerns a solid nanocomposite material consisting of a polymer-matrix in which are dispersed alkali metal, hydronium or ammonium salts of polyanionic components,wherein the polymer-matrix comprises at least a linear or branched polymer or copolymer containing one or several poly(ethylene oxide) (PEO) chains, said polymer or copolymer being optionally crosslinked and each PEO chain having at least 4 ethylene oxide monomer units.The present invention relates also to a photonic, e.g. optoelectronic, device comprising such a nanocomposite material.Such material and device can be used as phosphorescence emitter, for crop growth lighting or for generating singlet oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.