Effects of Er3+ concentration on down-/up-conversion luminescence and temperature sensing properties in NaGdTiO4: Er3+/Yb3+ phosphors

被引：78
作者：
Li, Xiangping [1 ]
Wang, Xin [1 ]
Zhong, Hua [1 ]
Cheng, Lihong [1 ]
Xu, Sai [1 ]
Sun, Jiashi [1 ]
Zhang, Jinsu [1 ]
Li, Xuejing [1 ]
Tong, Lili [1 ]
Chen, Baojiu [1 ]
机构：
[1] Dalian Maritime Univ, Dept Phys, Dalian 11026, Liaoning, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2016年 / 42卷 / 13期
基金：
中国国家自然科学基金;
关键词：
Concentration quenching; Down-conversion; Up-conversion; Temperature sensing; NANOPARTICLES; GLASS;
D O I：
10.1016/j.ceramint.2016.06.096
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Usually, Er3+ doping concentration effect on the temperature sensing properties of Er3+ containing materials is ignored. In this work, we demonstrated the influence of Er3+ concentration and excitation path on the spectral and temperature sensing properties in Er3+, Yb3+ co-doped NaGdTiO4 system. The NaGdTiO4: Er3+/Yb3+ phosphors were prepared by a high temperature solid state reaction method. Different spectral patterns for down- and up-conversion processes were observed and ascribed to the different excitation and population routes. The concentration quenching behaviors for down- and up-conversion processes were explained via cross relaxations between Er3+ ions. Most importantly, the Er3+ concentration dependent optical temperature sensing performance was observed and experimentally explained as a fact that the optical transition rate of Er3+ in different samples was changed with various Er3+ doping concentration. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：14710 / 14715
页数：6
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