文档介绍：doi:.1007-:Pr的制备与表征牟艳男1,2,邱敏1,皮艳梅1,张秀平1,杨玉蓉1,刘平1(,黑龙江黑河164300;,长春130000)摘要:采用溶胶—:Pr纳米粉末,分别应用XRD、SEM和荧光分光光度计对样品的结构、形貌和光学特性进行表征。结果表明,:Pr形状近似为球形,在900℃煅烧8h所得样品的激发主峰位于323nm,发射主峰在612nm处,对应Pr3+的1D2→3H4跃迁,并且,在900℃时样品的初始发光强度和余辉时间都是最高的。关键词::Pr;溶胶凝胶法;发光材料;纳米粉末;制备中图分类号:O469 文献标志码:A 文章编号:1007-7545(2013)07-0000-:PrNano-PowderMUYan-nan1,2,QIUMin1,PIYan-mei1,ZHANGXiu-ping1,YANGYu-rong1,LIUPing1(,HeiheUniversity,Heihe164300,Heilongjiang,China;,JilinUniversity,Changchun130012,China)Abstract::Prnano-powderswerepreparedwithsol-gelmethodandtheirstructure,morphologyandphotoluminescencepropertieswerecharacterizedbyXRD,SEMandfluorescencespectrophotometer,-:Pr3+℃foreighthoursshowastrongredemission(mainpeak612nm),whichcanbeassignedtobeatypical1D2→3H4transitionofPr3+.Thesampletreatedatahighertemperature(900℃)::Pr;sol-gel;luminescentmaterials;nano-powder;preparation稀土长余辉发光材料可以把吸收的太阳光或灯光能量存储起来,再缓慢地将其以可见光的形式释放[1],是一种新型节能环保