钒硼酸钇铕荧光粉的真空紫外光谱特性研究

采用高温固相法合成了YBχV1-χO4-χ：Eu^3＋荧光粉,利用XRD变温发射光谱以及真空紫外激发的光谱对其进行研究。结果表明,在147nm的真空紫外光激发下,荧光粉的发射主峰位于619nm,与（Y,Gd）BO3：Eu^3＋相比,色纯度较好,发光亮度达86％,是彩色PDP用红色荧光粉的候选材料。     

Characterization of (Y,Gd)B_xV_(1-x)O_(4-x)∶Eu Phosphor Prepared by Coprecipitation Reaction

The PDP have been widely used for large flatpanel displays.Phosphors for the application in PDPare required to have high conversion efficiency by theVUVradiation of147and/or172nmfromthe Xe andXe-He gas plasma[1].In order to have a good picturequality,much attention has been paid to i mprove ordevelop novel PDP phosphors[2~6].The commercialred emitting PDP phosphor(Y,Gd)BO3∶Eu3+showsthree sharp emissions peaked at593,612and627nm,which are corresponding to the transitions of5D0→7F1,5…     

Characterization of （Y, Gd） BxV1-xO4-x ： EU Phosphor Prepared by Coprecipitation Reaction

White body-color （Y, Gd）BxV1-xO4-x ：Eu^3＋ phosphors were prepared by coprecipitation reaction. Under VUV excitation at 147 nm, the red emission colorimetric purity of （Y, Gd） BxV1-xO4-x： Eu^3＋ phosphor is much better than that of commercial PDP （plasma display panels） phosphor （Y, Gd）BO3：Eu^3＋ . But its relative emission intensity is only about 90% of the commercial phosphor.     

共沉淀法制备Y(P,V)O4:Eu3+荧光粉及其真空紫外光谱特性研究

采用氨水、双氧水和磷酸氢二铵溶液作沉淀剂,通过共沉淀法制备出Y(P,V)O4Eu3+荧光粉,利用XRD,SEM以及真空紫外激发下的发射光谱对其进行研究.结果表明与高温固相合成法相比,共沉淀法制备的YP0 5Vo 5O4Eu3+荧光粉的颗粒形貌好,在147nm的真空紫外光激发下的发光亮度提高了21%,荧光粉发射主峰位于619nm,与目前的商品红色荧光粉(Y,Gd)BO3Eu3+相比,发光亮度达95%以上,并且色纯度好,是一种很有前途的彩色PDP用红色荧光粉.