Synthesis and luminescence properties of Yb3+ and Er3+ doped KLa(WO4)2 nanoparticles

被引：18
|
作者：
Chen, Meng [2 ,3 ]
Sun, Tongqing [1 ]
Chen, Hong [2 ,3 ]
Zhang, Yu [1 ]
Wu, Li [1 ]
Kong, Yongfa [2 ,3 ]
Xu, Jingjun [1 ,2 ,3 ]
机构：
[1] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China
[2] Nankai Univ, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300457, Peoples R China
[3] Nankai Univ, TEDA Appl Phys Sch, Tianjin 300457, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2010年 / 183卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Pechini method; Upconversion luminescence; Nanocrystalline; Potassium lanthanum tungstate; TRANSITION; SCHERRER; NA; LI;
D O I：
10.1016/j.jssc.2010.07.007
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The luminescent nanocrystalline Yb3+ and Er3+ codoped KLa(WO4)(2) has been prepared by Pechini method. X-ray diffraction and transmission electron microscope were used to study the structure of the obtained samples. The average grain size of these samples depended on the annealing temperature, increasing with the increase of the temperature. The cell parameters and the crystallite size of KYbxEr0.02La0.98-x(WO4)(2) nanocrystalline decreased with the increase of x value. Luminescence studies showed that the intensity of upconversion emission of the Yb3+ and Er3+ codoped samples was much stronger than that of the Er3+ single doped samples (pumped by 980 nm LD). The upconversion emission mechanisms suggested that all the three bands of upconversion emissions were two-photon process. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：2161 / 2165
页数：5
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