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Methods for preparation of nanocrystalline rare earth phosphates for lighting applications

United States Patent

8,419,974
April 16, 2013
View the Complete Patent at the US Patent & Trademark Office
Disclosed here are methods for the preparation of optionally activated nanocrystalline rare earth phosphates. The optionally activated nanocrystalline rare earth phosphates may be used as one or more of quantum-splitting phosphor, visible-light emitting phosphor, vacuum-UV absorbing phosphor, and UV-emitting phosphor. Also disclosed herein are discharge lamps comprising the optionally activated nanocrystalline rare earth phosphates provided by these methods.
Comanzo; Holly Ann (Niskayuna, NY), Manoharan; Mohan (Niskayuna, NY), Martins Loureiro; Sergio Paulo (Saratoga Springs, NY), Setlur; Anant Achyut (Niskayuna, NY), Srivastava; Alok Mani (Niskayuna, NY)
General Electric Company (Schenectady, NY)
12/ 332,881
20100148658
December 11, 2008
FEDERAL RESEARCH STATEMENT This invention was made with government support under contract number DE-FC26-03NT41945 awarded by the Department of Energy. The government has certain rights in the invention.