Upconversion luminescence of (Lu,M)NbO4:Yb3+,Er3+ (M: Al3+, Ga3+)

被引：12
|
作者：
Park, Jieun [1 ]
Kim, Young Jin [1 ]
机构：
[1] Kyonggi Univ, Dept Adv Mat Engn, Suwon 16227, South Korea
来源：
MATERIALS RESEARCH BULLETIN | 2017年 / 96卷
基金：
新加坡国家研究基金会;
关键词：
Ceramics; Optical materials; Luminescence; Phosphors; EMISSION; RED; NANOPARTICLES; IONS; LU; GD;
D O I：
10.1016/j.materresbull.2017.01.027
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of substitution of Al3+ and Ga3+ ions on the upconversion luminescence of (Lu,M)NbO4:Yb3+,Er3+ (M: Al3+, Ga3+) were studied for the first time. Under infrared (980 nm) radiation, the upconversion spectra consisted of strong green and weak red emission bands, which were assigned to the transition of the H-2(11/2)/S-4(3/2) and F-4(9/2) levels, respectively, to the ground state (I-4(15/2)) of the Er3+ ions through an energy transfer process from Yb3+ to Er3+. A two-photon upconversion process was involved in the upconversion emission of (Lu,M)NbO4:Yb3+,Er3+. Substitution of Al3+ and Ga3+ ions increased the green (red) emission intensity to approximately 120% (120%) and 135% (130%), respectively. These behaviors were explained in terms of the crystal field asymmetry and energy transfer probability. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：270 / 274
页数：5
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