Method of making electroluminescent phosphor using sonochemistry
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United States of America Patent
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Mar 21, 2006
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N/A
app pub date -
Aug 19, 2005
filing date -
May 31, 2002
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Abstract
A method of making zinc sulfide based electroluminescent phosphors is described wherein a first-fired zinc sulfide material having a hexagonal β-ZnS crystal structure is at least partially converted to a distorted hexagonal β-ZnS crystal structure by ultrasonic irradiation. The first-fired material is then fired at a lower temperature to form an electroluminescent phosphor.
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