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Color stable phosphors for LED lamps and methods for preparing them [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 2013.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Additional Creators:
General Electric Company, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
An LED lamp includes a light source configured to emit radiation with a peak intensity at a wavelength between about 250 nm and about 550 nm; and a phosphor composition configured to be radiationally coupled to the light source. The phosphor composition includes particles of a phosphor of formula I, said particles having a coating composition disposed on surfaces thereof; ((Sr.sub.1-zM.sub.z).sub.1-(x+w)A.sub.wCe.sub.x).sub.3(Al.sub.1-ySi.sub.y-)O.sub.4+y+3(x-w)F.sub.1-y-3(x-w) I wherein the coating composition comprises a material selected from aluminum oxide, magnesium oxide, calcium oxide, barium oxide, strontium oxide, zinc oxide, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, strontium hydroxide, zinc hydroxide, aluminum phosphate, magnesium phosphate, calcium phosphate, barium phosphate, strontium phosphate, and combinations thereof; and A is Li, NA, K, or Rb, or a combination thereof; M is Ca, Ba, Mg, Zn, or a combination thereof; and 0
Report Numbers:
E 1.99:8,593,062
8,593,062
Subject(s):
Note:
Published through SciTech Connect.
11/26/2013.
"8,593,062"
"13/080,099"
Murphy, James; Setlur, Anant; Camardello, Samuel.
Funding Information:
FC26-06NT42934
View MARC record | catkey: 24046116