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

被引：2
|
作者：
Marchylo, O. M. [1 ]
Nakanishi, Y. [2 ]
Kominami, H. [2 ]
Hara, K. [2 ]
Zavyalova, L. V. [1 ]
Svechnikov, S. V. [1 ]
Snopok, B. A. [1 ]
机构：
[1] Natl Acad Sci Ukraine, VE Lashkaryov Inst Semicond Phys, UA-03028 Kiev, Ukraine
[2] Shizuoka Univ, Elect Res Inst, Naka Ku, Hamamatsu, Shizuoka 4328011, Japan
来源：
THEORETICAL AND EXPERIMENTAL CHEMISTRY | 2013年 / 49卷 / 03期
关键词：
phosphor; SrTiO3:Pr3+; photoluminescence; aluminum; iron;
D O I：
10.1007/s11237-013-9309-7
中图分类号：
O6 [化学];
学科分类号：
0703 ;
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.
引用
收藏
页码：158 / 164
页数：7
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