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Chin. Phys. B, 2014, Vol. 23(6): 064211    DOI: 10.1088/1674-1056/23/6/064211

Green long-after-glow luminescence of Tb3+ in Sr2SiO4

Wang Qia b, Qiu Jian-Beia, Song Zhi-Guoa, Zhou Da-Chenga, Xu Xu-Huia
a College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;
b Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China
Abstract  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.
Keywords:  long-after-glow luminescence      Tb3+      Sr2SiO4     
Received:  31 July 2013      Published:  15 June 2014
PACS:  42.70.-a (Optical materials)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51272097, 61265004, and 61265007).
Corresponding Authors:  Qiu Jian-Bei     E-mail:

Cite this article: 

Wang Qi, Qiu Jian-Bei, Song Zhi-Guo, Zhou Da-Cheng, Xu Xu-Hui Green long-after-glow luminescence of Tb3+ in Sr2SiO4 2014 Chin. Phys. B 23 064211

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