CeO2：Sm^3＋荧光粉的发光特性研究  

Luminescence Properties of CeO2 ： Sm^3＋ Phosphor Powders

作　　者：黎明[1] 刘晓华[1] 陈绍军[1] 王孝东[1] 

机构地区：[1]汕头大学物理系,广东汕头515063

出　　处：《中国材料科技与设备》2006年第6期43-45,共3页Chinese Materials Science Technology & Equipment

基　　金：广东省自然科学基金资助项目（04010998）;人事部留学人员科技活动择优资助项目;教育部回国留学人员基金资助项目

摘　　要：采用高温固相反应法制备了不同浓度Sm^3＋掺杂的CeO2荧光粉，样品粉末在紫外激发下发出明亮的橙红色光。利用X射线衍射（XRD）和光致荧光光谱（PL）对样品进行了表征，结果表明样品在掺杂浓度小于4mol％时，Sm^3＋离子完全替代Ce^4＋离子进入基质CeO2的晶格而形成Ce1-xSmxO2固溶体。PL谱表明Sm^3＋的发射峰强度最初随Sm^3＋掺杂浓度提高而迅速增强，在Sm^3＋掺杂浓度为1mol％达到极大，随后出现浓度猝灭。The phosphor powders of CeO2 doped with Sm^3＋ was prepared by solid state reaction. The powder samples were characterized by X -ray diffraction （XRD） and photol （PL）. XRD analysis showed the formation of pure solid solution Ce1 -x SmxO2when the Sm^3＋ concentration is below 4mol%. The dependence of luminescence intensity on the Sm^3＋ concentration in CeO2： Sm^3＋ was studied. The luminescence intensity increased with increasing Sm^3＋ concentration, up to about 1 mol%, and then abruptly decreased indicating the concentration quenching.

关 键 词：CEO2 SM^3+ 固相反应 发光 

分 类 号：O47[理学—半导体物理]