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

doi:10.1088/1674-1056/23/6/064211

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
Revised: 19 November 2013
Accepted manuscript online:

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: qiu@kmust.edu.cn

Cite this article:

Wang Qi (王齐), Qiu Jian-Bei (邱建备), Song Zhi-Guo (宋志国), Zhou Da-Cheng (周大成), Xu Xu-Hui (徐旭辉) Green long-after-glow luminescence of Tb³⁺ in Sr₂SiO₄ 2014 Chin. Phys. B 23 064211

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

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