%0 Journal Article
%T Characteristics and Mechanism of Up-conversion Luminescence in Er3+/Yb3+/Tb3+ Co-doped Oxyfluorogermanate Glasses
%A HU Yue-Bo1
%A 2
%A 3
%A QIU Jian-Bei2
%A ZHOU Da-Li1
%A YANG Zhen-Wen2
%A SONG Zhi-Guo2
%J 无机材料学报
%D 2010
%I Science Press
%R 10.3724/sp.j.1077.2010.09878
%X Up-conversion luminescence properties and energytransfer processes in Er3+,Yb3+ and Tb3+ single doped or co-doped oxyfluorogermanate glasses were studied under 980nm laser excitation. Green and red up-conversion emissions around 524, 546 and 658nm which can be assigned to the Tb3+∶5D4→7FJ (J=5 and 0) and Er3+∶(2H11/2, 4S3/2 and 4F9/2)→4I15/2 transitions, respectively, were strongly observed at room temperature. Up-conversion luminescence intensity depended on the YbF3, TbF3 concentration and excitationpower density. The energy transfer processes among Er3+, Yb3+ and Tb3+, and up-conversion mechanisms were discussed.
%K up-conversion luminescence
%K mechanism
%K oxyfluorogermanate glasses
%K Er3+/Yb3+/Tb3+ co-doped
%K energy transfer
%U http://www.jim.org.cn/fileup/PDF/20100520.pdf