C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 11/58 (2006.01) C09K 11/00 (2006.01) C09K 11/61 (2006.01)
Patent
CA 2361220
A method of increasing the color-stability of an electroluminescent phosphor which comprises the steps of forming the phosphor and then firing the formed phosphor in a vacuum in the presence of a material selected from the group of Eu, Ce, and Sm for a time sufficient to provide said increase in color-stability.
Gingerich Richard G.w.
Vanderpool Clarence D.
Fetherstonhaugh & Co.
Osram Sylvania Inc.
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