Spectroscopic Study on the Energy Transfer Effect in Sm3+/Eu3+ Codoped Tetragonal LaOF Nanocrystals System

被引：1
|
作者：
Fu Zhen-xing [1 ,2 ]
Zheng Hai-rong [1 ]
Liu Bi-rui [2 ]
机构：
[1] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Peoples R China
[2] Ningxia Normal Univ, Coll Phys & Informat Technol, Guyuan 756000, Peoples R China
来源：
SPECTROSCOPY AND SPECTRAL ANALYSIS | 2011年 / 31卷 / 08期
关键词：
LaOF : Sm3+/Eu3+; Nanocrystals system; Energy transfer; Spectroscopic property; LUMINESCENCE PROPERTIES; PHOSPHOR; PHOTOLUMINESCENCE; IONS; SM3+;
D O I：
10.3964/j.issn.1000-0593(2011)08-2183-04
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The powder samples of Sm3+/Eu3+ co-doped in LaOF nanocrystals were synthesized by using a hydrothermal-sintering technique. The characterization results of XRD and TEM suggests that the structure of the nanocrystals is tetragonal, and its size is between 60 similar to 80 nm. Using 442 nm laser to pump the LaOF : Sm3+/Eu3+ nanocrystals samples, the energy transfer effect from Sm3+ ions to Eu3+ ions was completed, and the fluorescence emissions originating from the D-5(0) level of Eu3+ were observed. The luminescence properties of the LaOF : Sm3+/Eu3+ nanocrystals system were analyzed with a spectroscopic method, and the mechanism and dynamic process of the energy transfer were explored. It was found that the efficiency of the energy transfer increase with the increase in the concentration of Eu3+ ions and the size of nanocrystals.
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页码：2183 / 2186
页数：4
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