Cooperative energy transfer in Eu^(3+),Yb^(3+) codoped Y_2O_3 phosphor  

作　　者：韦先涛 赵江波 张慰萍 李勇 尹民 

机构地区：[1]Department of Physics,University of Science and Technology of China

出　　处：《Journal of Rare Earths》2010年第2期166-170,共5页稀土学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (10774140);Knowledge Project of the Chinese Academy of Sciences (KJCX2-YW-M11);Specialized Research Fund for the Doctoral Program of Higher Education (20060358054);Special Foundation for Talents of Anhui Province,China (2007Z021)

摘　　要：Under 980 nm laser excitation,red emission(5D0-7FJ(J=0,1,2)) of Eu3+ was observed in cubic Y2O3 codoped with Eu3+ and Yb3+.The dependence of the upconverted emission on doping concentration and laser power was studied.Yb3+ emission around 1000 nm(2F5/2-2F7/2) was reported upon excitation of Eu3+ ions.The decay curves of 5DJ(J=0,2) emission of Eu3+ under excitation of 266 nm pulse laser were examined to investigate the Eu3+→Yb3+ energy transfer process.Cooperative energy transfer process was discussed as the...Under 980 nm laser excitation,red emission(5D0-7FJ(J=0,1,2)) of Eu3+ was observed in cubic Y2O3 codoped with Eu3+ and Yb3+.The dependence of the upconverted emission on doping concentration and laser power was studied.Yb3+ emission around 1000 nm(2F5/2-2F7/2) was reported upon excitation of Eu3+ ions.The decay curves of 5DJ(J=0,2) emission of Eu3+ under excitation of 266 nm pulse laser were examined to investigate the Eu3+→Yb3+ energy transfer process.Cooperative energy transfer process was discussed as the...

关 键 词：cooperative energy transfer Y2O3:Eu3+ YB3+ UPCONVERSION SOL-GEL rare earths 

分 类 号：O614.3[理学—无机化学]