Luminescent Hafnia Composition.
DEPARTMENT OF THE NAVY WASHINGTON DC
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A cubia, yttria stabilized hafnia phosphor, doped with Ce3, has been discovered. The phosphor has a blue luminescence, peaking at about 4200 A, with a secondary peak in the 3800-4000 A region. The optimum composition is 3hfO2Y2O3Ce3 where the Ce3 dopant ranges from 0.1-1.0 weight . Author