SrAl_2O_4:Eu^(2+)、Dy^(3+)、Ho^(3+)长余辉发光材料的燃烧法合成及其发光性能  

Synthesis of SrAl_2O_4:Eu^(2+),Dy^(3+),Ho^(3+) Long Persistent Phosphor by Combustion Processes and Its Optical Properties

作　　者：赵长亮[1] 尹盛玉[1] 宋华杰[1] 徐咏钗[1] 陈栋华[1] 

机构地区：[1]中南民族大学催化材料科学湖北省暨国家民委-教育部共建重点实验室,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2007年第2期7-10,共4页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：湖北省自然科学基金重点资助项目(2001ABA009)

摘　　要：利用燃烧法在600℃合成了SrAl2O4:Eu2+、Dy3+、Ho3+长余辉发光材料.所得产物分别进行了XRD、TEM、FL测试和激发一定时间后的亮度测试,分析结果表明:所得燃烧产物都单一的SrAl2O4相,TEM测试表明磷光体的平均粒径在50nm左右,发射光谱表明最大发射峰位于513 nm,产物的亮度测试表明,SrAl2O4:Eu2+、Dy3+中掺入一定量的Ho3+,会使其余辉性能增强.Eu2+,Dy3+ and Ho3+co-doped strontium aluminate with high brightness and long persistent luminescence were prepared by the combustion method at 600℃.The phosphor powders were further investigated by X-ray diffractometer(XRD),transmission electron microscopy(TEM),photoluminescence excitation and emission spectra(PL) and brightness meter.The analytical results indicates that the SrAl2O4 is single-phase.The average particle size of the SrAl2O4:Eu2+,Dy3+,Ho3+ long persistent phosphor particles is about 50 nm.The...

关 键 词：长余辉磷光体 燃烧法合成 铝酸锶 发光性能 稀土化合物 

分 类 号：TB34[一般工业技术—材料科学与工程]