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Method to produce nanocrystalline powders of oxide-based phosphors for lighting applications

United States Patent

December 25, 2007
View the Complete Patent at the US Patent & Trademark Office
Some embodiments of the present invention are directed toward nanocrystalline oxide-based phosphor materials, and methods for making same. Typically, such methods comprise a steric entrapment route for converting precursors into such phosphor material. In some embodiments, the nanocrystalline oxide-based phosphor materials are quantum splitting phosphors. In some or other embodiments, such nanocrystalline oxide based phosphor materials provide reduced scattering, leading to greater efficiency, when used in lighting applications.
Loureiro; Sergio Paulo Martins (Saratoga Springs, NY), Setlur; Anant Achyut (Niskayuna, NY), Williams; Darryl Stephen (Clifton Park, NY), Manoharan; Mohan (Niskayuna, NY), Srivastava; Alok Mani (Niskayuna, NY)
General Electric Company (Niskayuna, NY)
10/ 991,980
November 17, 2004
FEDERALLY SPONSORED RESEARCH The present invention was made with support from the Department of Energy, Contract Number DE-FC26.03NT41945.