Synthesis and luminous characteristics of Y(P,V)O₄:Eu³⁺ phosphors for PDP

Y(P,V)O₄:Eu³⁺ phosphors with good morphology for plasma display panels have been prepared via coprecipitation reaction. The phosphor was characterized by SEM and photoluminescence under UV(325 nm) and VUV(147 nm) excitation. The emission spectra depending on temperature under 325 nm excitation by laser indicated that there exist energy transfer between VO₄^3- group and Eu³⁺ ion. Under 147 nm excitation, the most intense emission peaks of commercial (Y,Gd)BO₃:Eu³⁺ phosphor range around 593 nm, and those of Y(P,V)O₄:Eu³⁺ phosphors prepared by coprecipitation reaction ranged around 619 nm. The red emission color purity of Y(P,V)O₄:Eu³⁺ phosphor is much better than that of (Y,Gd)BO₃:Eu³⁺, and its relative emission intensity is almost close to that of the commercial phosphor.