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Strontium oxyorthosilicate phosphors having improved stability under a radiation load and resistance to atmospheric humidity

  • US 8,173,042 B2
  • Filed: 09/10/2010
  • Issued: 05/08/2012
  • Est. Priority Date: 12/21/2009
  • Status: Active Grant
First Claim
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1. A phosphor comprising the formula Ba3-x-y-zCaxM

  • ySiO5;

    Dz, whereinM

    is a divalent metal ion comprising at least one of Mg, Cu, Zn, and Mn;

    D is an activator comprising at least one of Eu, Sm, Yb, and Ce;

    0<

    x≦

    0.05;

    0≦

    y≦

    0.5; and

    0<

    z≦

    0.25.

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