Electroluminescent ZnS:Mn phosphor and method of making
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United States of America Patent
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Oct 15, 2013
Grant Date -
Sep 17, 2009
app pub date -
Mar 11, 2009
filing date -
Mar 13, 2008
priority date (Note) -
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Abstract
An electroluminescent phosphor comprising ZnS:Mn is disclosed. Also disclosed are ZnS:Mn electroluminescent phosphors that are free of or substantially free of copper, and/or wherein the phosphor has a D50 size of less than about 5 μm. In addition, a method for preparing a ZnS:Mn phosphor is disclosed, comprising the steps of contacting at least a portion of each of a first solution comprising a Zn2+ compound, a manganese source, and a second solution comprising a S2− source agent; and then heating the mixture at a temperature and for a time sufficient to form a phosphor.
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