Hydrothermal synthesis and luminescence behavior of lanthanide-doped GdF3 nanoparticles

被引:31
作者
Fan, XP [1 ]
Pi, DB [1 ]
Wang, F [1 ]
Qiu, JR [1 ]
Wang, MQ [1 ]
机构
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
基金
中国国家自然科学基金;
关键词
erbium; europium; fluorine compounds; luminescence; nanotechnology;
D O I
10.1109/TNANO.2006.869670
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The lanthanide-doped GdF3 nanoparticles have been produced by a simply hydrothermal synthesis procedure. The excitation and emission spectra of the Eu3+ -doped GdF3 nanoparticles showed that the excitation energy of Gd3+ is efficiently transferred to Eu3+ in the Eu3+ -doped GdF3 nanoparticles. Due to very low phonon energies of GdF3 matrix, the D-5(1) emission of Eu3+ ions in the Eu3+ -doped GdF3 nanoparticles can be observed at room temperature when the doping concentration of Eu3+ ions is lower than 15 mol%. The luminescence intensity of the Eu3+ -doped GdF3 nanoparticles increased with increasing concentration of Eu3+ ions and reached a maximum at approximately 15 mol%. The Er3+-doped GdF3 nanoparticles exhibit the typical emission spectra of Er3+ in the near-infrared region. The upconversion emission of the Er3+/Yb3+ codoped GdF3 nanoparticles can also be observed. However, the upconversion emission intensity of the Er3+/Yb3+-codoped GdF3 nanoparticles was much weaker than that of the Er3+/Yb3+-codoped GdF3 bulk crystal.
引用
收藏
页码:123 / 128
页数:6
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