Effect of Al3+ Additions on the Microstructure and Photoluminescence of SrTiO3:Pr3+ Phosphors Produced by the Sol–Gel Method

被引：0
|
作者：
O. M. Marchylo
Y. Nakanishi
H. Kominami
K. Hara
L. V. Zavyalova
S. V. Svechnikov
B. A. Snopok
机构：
[1] National Academy of Sciences of Ukraine,V. E. Lashkaryov Institute of Semiconductor Physics
[2] Shizuoka University,Research Institute of Electronics
来源：
Theoretical and Experimental Chemistry | 2013年 / 49卷
关键词：
phosphor; SrTiO; :Pr; photoluminescence; aluminum; iron;
D O I：
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学科分类号：
摘要：
The effect of various concentrations of Pr3+ on the structural and luminescent characteristics of SrTiO3:Pr3+ phosphors synthesized by the sol–gel method was investigated. Maximum intensity of red luminescence (617 nm) for SrTiO3:Pr3+ with excitation by ultraviolet radiation is observed at an effective Pr3+ concentration of 0.2 mole %. It was shown that the addition of aluminum at the optimum Pr3+ concentration leads to deterioration of the crystallinity and reduces brightness of the SrTiO3:Pr3+ luminescence. The reason for the last effect may be the presence of minute amounts of iron impurity in the initial reagents.
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页码：158 / 164
页数：6
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