PHOSPHORS OF RARE EARTH AND TRANSITION METAL DOPED CA1+XSR1-XGAYIN2-YSZSE3-ZF2; METHODS OF MANUFACTURING AND APPLICATIONS
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United States of America Patent
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Issued Date -
Mar 5, 2015
app pub date -
Oct 23, 2014
filing date -
Nov 11, 2010
priority date (Note) -
Abandoned
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Abstract
Energy down conversion phosphors represented by the chemical formula Ca1+xSr1−xGayIn2−ySzSe3−zF2 where (0≦x≦1, 0≦y≦2, 0≦z≦3) doped with rare earth and/or transition metal elements is disclosed. Dopant impurities may be one or more species such as Eu, Ce, Mn, Ru, and/or mixtures thereof present as activators. The molar fractions x, y and z, the dopant species and the dopant concentration may be varied to tune the peak emission wavelength and/or the width of the emission peak.
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