Upconversion luminescence of Yb^(3+)/Ho^(3+)/Er^(3+)/Tm^(3+) co-doped KGd(WO_4)_2 powders  

作　　者：杜海燕 蓝雨靖 夏志国 孙家跃 

机构地区：[1]College of Chemistry and Environmental Engineering, Beijing Technology and Business University [2]School of Materials Sciences and Technology, China University of Geosciences

出　　处：《Journal of Rare Earths》2010年第5期697-700,共4页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (20876002, 20976002);the Beijing Natural Science Foundation (2091002);Funding Project for Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality

摘　　要：Different lanthanide ions (Yb3+/Ho3+/Er3+/Tm3+) codoped KGd(WO4)2 phosphors were prepared by high-temperature solid-state reaction. The upconversion luminescence properties of two-ion and three-ion co-doped KGd(WO4)2 phosphors were investigated in detail. The concentration quenching effect of the two-ion co-doped KGd(WO4)2 phosphors was studied, and the optimum concentration of Ho3+, Er3+ and Tm3+ are 2 mol.%, 2 mol.% and 3 mol.%, respectively. The Yb3+/Ho3+/Tm3+ co-doped KGd(WO4)2 sample is the best white ...Different lanthanide ions (Yb3+/Ho3+/Er3+/Tm3+) codoped KGd(WO4)2 phosphors were prepared by high-temperature solid-state reaction. The upconversion luminescence properties of two-ion and three-ion co-doped KGd(WO4)2 phosphors were investigated in detail. The concentration quenching effect of the two-ion co-doped KGd(WO4)2 phosphors was studied, and the optimum concentration of Ho3+, Er3+ and Tm3+ are 2 mol.%, 2 mol.% and 3 mol.%, respectively. The Yb3+/Ho3+/Tm3+ co-doped KGd(WO4)2 sample is the best white ...

关 键 词：upconversion luminescence KGd（WO4）2 powder white light phosphor rare earths 

分 类 号：TB383.3[一般工业技术—材料科学与工程]