Photoluminescence and Thermoluminescence Investigation of Europium- and Dysprosium-Doped Dibarium Magnesium Silicate Phosphor

被引：23
|
作者：
Shrivastava, Ravi [1 ]
Kaur, Jagjeet [1 ]
Dubey, Vikas [1 ]
Jaykumar, Beena [1 ]
Loreti, Stefano [2 ]
机构：
[1] Govt VYT PG Autonomous Coll, Durg 491001, Chhattisgarh, India
[2] ENEA Ctr Ric Casaccia, Rome, Italy
来源：
SPECTROSCOPY LETTERS | 2015年 / 48卷 / 03期
关键词：
thermoluminescence; photoluminescence; persistence luminescence; kinetic data; PERSISTENT LUMINESCENCE; EU2+; BA2MGSI2O7;
D O I：
10.1080/00387010.2013.872666
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Europium- and dysprosium-doped barium magnesium silicate powder with different concentrations of dysprosium was synthesized using solid state reactions. The prepared phosphors were characterized using photoluminescence. Prominent green color emissions were obtained under ultraviolet excitation. The thermoluminescence glow curves of the samples were measured after various delay times. With increased delay time, the intensity of the thermoluminescence peak decays, and the position of the thermoluminescence peak shifts to higher temperatures, indicating the considerable retrapping associated with general order kinetics. Refined lattice parameters of monoclinic phosphor were calculated.
引用
收藏
页码：179 / 183
页数：5
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