The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2022
Filed:
Nov. 10, 2016
Linxens Holding, Mantes-la-Jolie, FR;
Universite Blaise Pascal Clermont Ii, Clermont-Ferrand, FR;
Sigma Clermont, Aubiere, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Anthony Barros, Chauriat, FR;
Rodolphe Deloncle, Le Cendre, FR;
Jérôme Deschamps, Aubiere, FR;
Geneviève Chadeyron, Cebazat, FR;
Damien Boyer, Cebazat, FR;
Philippe Boutinaud, Cournon d'Auvergne, FR;
Other;
Abstract
A sol-gel process for synthesizing a luminescent material has a general formulation: AxByFz:Mn. A is an element of group 1, 2, 4, NRor a combination of elements belonging to those groups, with R═H or an alkyl chain or a combination of chains. B is an element of group 5, 6, 13, 14 and 0<x≤5, 0<y≤2, 5≤z≤7. The sol-gel process includes a) producing a liquid precursor () in an alcohol solution by mixing metal reagents () with manganese, the mixture being made at pH<8; b) obtaining a solid precursor () from the liquid precursor () obtained in step a), by eliminating () the solvent; c) crystallizing () the solid precursor () obtained in step b) by thermal treatment in fluorinated atmosphere; and d) retrieving the fluorescent crystalline powder () obtained at an end of step c).