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Investigation of the persistent luminescence of LiBaPO4:Eu2+

Published online by Cambridge University Press:  04 February 2014

Guifang Ju ,
Yihua Hu ,
Li Chen  and
Xiaojuan Wang
Guifang Ju
Affiliation:
School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
Yihua Hu*
Affiliation:
School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
Li Chen
Affiliation:
School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
Xiaojuan Wang
Affiliation:
School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
*
a) Address all correspondence to this author. e-mail: huyh@gdut.edu.cn
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Abstract

We investigated the persistent luminescence in europium-doped LiBaPO4. The persistent phosphors were synthesized via solid-state reaction method under mild reducing atmosphere. Its properties were investigated by x-ray diffraction, diffuse reflectance, photoluminescence, persistent luminescence, and thermoluminescence spectra. Under UV irradiation, broad-band persistent luminescence peaked at ∼470 nm was observed in the phosphors at room temperature. The effects of Eu2+ concentration on the persistent luminescence of LiBaPO4:Eu2+ were discussed. An energy level scheme was constructed to convey reasonable trapping and detrapping processes in the material.

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Articles
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Journal of Materials Research , Volume 29 , Issue 4 , 28 February 2014 , pp. 519 - 526
Copyright
Copyright © Materials Research Society 2014 

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