Green long-after-glow luminescence of Tb^(3+)in Sr_2SiO_4  

作　　者：王齐 邱建备 宋志国 周大成 徐旭辉 

机构地区：[1]College of Materials Science and Engineering, Kunming University of Science and Technology [2]Research Center for Analysis and Measurement,Kunming University of Science and Technology

出　　处：《Chinese Physics B》2014年第6期266-270,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51272097,61265004,and 61265007)

摘　　要：The green long-after-glow luminescence from Tb3＋-doped Sr2SiO4 phosphors, which are synthesized by the high temperature solid state reaction in a reductive atmosphere, is observed in this paper. The results show that under ultraviolet excitation, the obtained phosphors produce an intense green-lighting-emission from the Tb3＋, and the green-lighting long- after-glow luminescence related to Tb3＋ can last half an hour after the irradiation source has been removed. Moreover, the effects of co-doping Li＋, Dy3＋, Er3＋, Gd3＋, and Yb3＋ with Tb3＋ on the decay properties and thermoluminescence properties are investigated to confirm the long-after-glow mechanism.The green long-after-glow luminescence from Tb3＋-doped Sr2SiO4 phosphors, which are synthesized by the high temperature solid state reaction in a reductive atmosphere, is observed in this paper. The results show that under ultraviolet excitation, the obtained phosphors produce an intense green-lighting-emission from the Tb3＋, and the green-lighting long- after-glow luminescence related to Tb3＋ can last half an hour after the irradiation source has been removed. Moreover, the effects of co-doping Li＋, Dy3＋, Er3＋, Gd3＋, and Yb3＋ with Tb3＋ on the decay properties and thermoluminescence properties are investigated to confirm the long-after-glow mechanism.

关 键 词：long-after-glow luminescence Tb3＋ SR2SIO4 

分 类 号：O482.31[理学—固体物理]