Red emitting long decay phosphors
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United States of America Patent
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Jul 22, 1997
Grant Date -
N/A
app pub date -
Jun 6, 1995
filing date -
Jun 6, 1995
priority date (Note) -
Expired
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Abstract
Long decay phosphors are disclosed that are comprised of rare-earth activated divalent titanates. In particular, the long decay phosphors are comprised of (Ca.sub.(1-a-b) Pr.sub.a M.sub.b)O.TiO.sub.2 wherein 0.00001.ltoreq.a.ltoreq.0.1 and 0.0.ltoreq.b.ltoreq.0.3 and M is Zn and/or Mg.
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