Controlled synthesis and luminance properties of lanthanide-doped β-NaYF4 microcrystals

被引：4
作者：
王军梅 [1 ,2 ,3 ]
李克训 [4 ]
赵彦保 [1 ]
朱珍平 [2 ]
机构：
[1] Key Laboratory for Special Functional Materials, Henan University
[2] State Kay Laboratory of Coal Conversion Institute of Coal Chemistry, Chinese Academy of Sciences
[3] University of Chinese Academy of Sciences
[4] The Electromagnetic Protection Technology Key Laboratory of Shanxi of NO.33 Institute of China Electronic Technology Group Corporation
来源：
Journal of Rare Earths | 2015年 / 33卷 / 04期
基金：
中国国家自然科学基金;
关键词：
nanostructures; inorganic compounds; chemical synthesis; optical properties; rare earths;
D O I：
暂无
中图分类号：
O753.1 [];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Hexagonal Yb3+,Er3+-doped Na YF4 crystals with different morphologies were synthesized by a facile hydrothermal method at 140–200 oC. Their shape and size could be controlled by varying hydrothermal temperature, time and doping effect of Ce3+ ions. Interestingly, the products displayed hexagonal sheet, plate, crown-like prism to tube changes in the temperature range from 140 to 200 oC. A combination of "diffusion-controlled growth" and "selective adsorption" was proposed to understand the formation of the Na YF4 crystals with well-defined shapes. Na YF4:Yb3+/Er3+ crystals exhibited shape-dependent up-conversion(UC) luminescence under excitation of 980 nm, and their luminescence property could be tuned by doping Ce3+ ions.
引用
收藏
页码：339 / 345
页数：7
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