纳米稀土磷酸盐(Gd，Y)PO4：Tb的室温固相合成及发光性能  

Preparation and green-emitting properties of rare earth phosphate(Gd,Y) PO_4:Tb nanophosphors by solid state reaction of precursors at room temperature

作　　者：王芬[1] 周立群[1] 梁永光[2] 李明[2] 周丽荣[1] 杨念华[1] 

机构地区：[1]湖北大学有机功能分子合成与应用教育部重点实验室,湖北武汉430062 [2]武汉大学化学与分子科学学院,湖北武汉430072

出　　处：《化学研究与应用》2008年第1期96-99,共4页Chemical Research and Application

基　　金：湖北省自然科学基金(2005ABA059);有机功能分子合成与应用教育部重点实验室资助项目

摘　　要：Green nanophosphors(Gd,Y)PO4:Tb were prepared by solid state chemical reaction of precursors at room temperature.The formation process,particle-size,shape and fluorescence properties of the phosphor were characterized by means of XRD,TEM and solid fluorescence techniques.The results indicate the nanophosphor of(Gd,Y)PO4:Tb belong to the monoclinic system,its space group is P21/ n,its average particle size is 35nm,has better particle dispersion.The phosphor exhibits green fluorescence when excited by ultraviolet radiation of 380nm wavelength.The strongest peak is at 545nm,which assigned to 5D4→7F5 transition of Tb3+ ion.The phosphor is a kind of efficient green-emitting luminescence material.Green nanophosphors （Gd,Y）PO4 ：Tb were prepared by solid state chemical reaction of precursors at room temperature. The formation process, particle-slze, shape and fluorescence properties of the phosphor were characterized by means of XRD, TEM and solid fluorescence techniques. The results indicate the nanophosphor of （Gd,Y）PO4 ：Tb belong to the monoclinic system , its space group is P21/n, its average particle size is 35nm, has better particle dispersion. The phosphor exhibits green fluorescence when excited by ultraviolet radiation of 380nm wavelength. The strongest peak is at 545nm, which assigned to ^5D4→^7F5 transition of Tb^3 ＋ ion. The phosphor is a kind of efiqclent green-emitting luminescence material.

关 键 词：室温固相反应 稀土磷酸盐 纳米荧光粉 发光材料 

分 类 号：O611.3[理学—无机化学]