Oxynitride orange-red fluorescent substance and light-emitting film or sheet and light-emitting device comprising the same
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United States of America Patent
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Jun 6, 2017
Grant Date -
Oct 29, 2015
app pub date -
Dec 20, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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Abstract
An oxynitride orange-red fluorescent substance and a light-emitting film or sheet and a light-emitting device comprising the same are disclosed. The chemical formula of the oxynitride orange-red fluorescent substance is MmAaSixNyOz:dR in which the element M is one or more of the elements selected from Ca, Sr and Ba, the element A is Al or a mixture of Al with one or more of the elements selected from Ga, La, Sc and Y, the element R is one or more of the elements selected from Ce, Eu and Mn, 0.8≦m≦1.2, 1
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