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

Patent · Tue Dec 25 00:00:00 EST 2007

OSTI ID:921487

Loureiro, Sergio Paulo Martins ^[1]; Setlur, Anant Achyut ^[2]; Williams, Darryl Stephen ^[3]; Manoharan, Mohan ^[2]; Srivastava, Alok Mani ^[2]

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1. Saratoga Springs, NY
2. Niskayuna, NY
3. Clifton Park, NY

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.

• Research Organization: GE Global Research, Niskayuna, New York (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC26-03NT41945
• Assignee: General Electric Company (Niskayuna, NY)
• Patent Number(s): 7,311,859
• Application Number: 10/991,980
• OSTI ID: 921487
• Country of Publication: United States
• Language: English