YMO4:Eu,L phoshpor with improved lumen maintenance
A Y(P,V)O4:Eu3+ red emitting phosphor is doped with at least one of a trivalent rare earth ion excluding Eu and a divalent metal ion to improve the lumen maintenance of the phosphor. The preferred material is the Y(P,V)O4:Eu3+ phosphor doped with trivalent Tb3+ ions and divalent Mg2+ ions.
General Electric Company
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Holly Ann Alok Mani Charles David William Winder Steven Jude
Comanzo Srivastava Greskovich Beers Duclos