Abstract
We have proposed, experimentally demonstrated, and implemented a technique for producing a new photostimulated blue-green phosphor with increased photostimulated luminescence intensity via additional doping of the Sr4Al14O25:Eu,Tm phosphor with La3+. The photostimulated phosphor (FV-490M) has been commercialized and is used most widely in security and authentication applications, both as an individual phosphor and in combination with the photostimulated red phosphor SrS:Eu,Sm. When IR-stimulated, the combination phosphor exhibits a dynamic visual kinetic effect.
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