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Persistent phosphor

  • US 7,959,827 B2
  • Filed: 12/12/2007
  • Issued: 06/14/2011
  • Est. Priority Date: 12/12/2007
  • Status: Expired due to Fees
First Claim
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1. A phosphor of formula of Ax-y-z Al2-m-n-o-pO4:

  • Euy, REz, Bm, Znn, Coo, Scp wherein;

    A is Ba, Sr, Ca, or a combination of these metals;

    x is between about 0.75 and 1.3;

    y is between about 0.0005 and 0.1;

    z is between about 0.0005 and 0.1;

    m is between about 0.0005 and 0.30;

    n is between about 0.0005 and 0.10;

    o is between about 0 and 0.01;

    p is between about 0 and 0.05; and

    RE is Dy, Nd, or a combination thereof.

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