用燃烧法和沉淀法制备橙红色Sr_5(PO_4)_3X:Eu^(3+),Na^+(X=F,Cl)荧光粉  

Preparation Orange-Red Phosphors Sr_5(PO_4)_3X:Eu^(3+),Na^+(X=F,Cl) via the Precipitation and Combustion Mothed

作　　者：杨继兰[1] 王卓[1] 刘慧[1] 刘瑞利[1] 

机构地区：[1]烟台大学环境与材料工程学院,山东烟台264005

出　　处：《硅酸盐学报》2011年第6期913-917,共5页Journal of The Chinese Ceramic Society

基　　金：山东省烟台大学大学生科技创新(20090711)资助项目

摘　　要：分别采用沉淀法和以尿素为燃烧剂的燃烧法制备一系列可被近紫外光(393 nm)激发的橙红色Sr5(PO4)3X:xEu3+,xNa+(X=F,Cl)荧光粉。X射线粉末衍射分析和Fourier红外光谱测试结果表明:合成样品为六方晶系Sr5(PO4)3X(X=F,Cl)。荧光光谱测试结果证明:燃烧法合成样品的发光性能优于沉淀法的,并且Eu3+、Na+的共掺量变化没有改变基质发射光谱的分布,只是影响其发光强度,在Sr5(PO4)3F和Sr5(PO4)3Cl中Eu3+、Na+的最佳共掺量分别为x=0.20、x=0.15。尿素用量对发光强度影响的分析结果表明:在Sr5(PO4)3F:0.20Eu3+,0.20Na+荧光粉中,当摩尔比n(尿素):n(Sr2+)=2:1时,样品的发光强度最好。Orange-red phosphors Sr5（PO4）3X：xEu3＋,xNa＋（X=F,Cl）,which can be excited by near-ultraviolet light（393 nm） were prepared by the precipitation and combustion with urea.The X-ray powder diffraction patterns and Fourier transform infrared spec-troscopy spectra indicate that these samples belong to a hexagonal system Sr5（PO4）3X（X=F,Cl）.The concentration of Eu3＋ and Na＋ do not change matrix＇s emission spectra but luminescence intensity and phosphor＇s property of combustion are superior to those in-duced by the precipitation using the fluorescence spectra.In addition,luminescence intensity depends on urea amount,and in Sr5（PO4）3F：0.20Eu3＋,0.20Na＋ results in powder with the highest intensity when molar ratio of urea to Sr2＋ is 2：1.

关 键 词：卤磷酸盐 发光材料 橙红色荧光粉 燃烧法 

分 类 号：O482.31[理学—固体物理] O614.33[理学—物理]