Sm3+/Eu3+共掺四方相LaOF纳米体系中能量传递效应的光谱学研究

doi:10.3964/j.issn.1000-0593(2011)08-2183-04

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Abstract 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 60～80 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 ⁵D₀ 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.

Key words：LaOF∶Sm³⁺/Eu³⁺;Nanocrystals system;Energy transfer;Spectroscopic property

Received: 2010-08-23 Accepted: 2010-11-20

ZTFLH:	O482.3
	O782+.9

Corresponding Authors: ZHENG Hai-rong E-mail: hrzheng@snnu.edu.cn

Cite this article:

FU Zhen-xing,ZHENG Hai-rong,LIU Bi-rui. Spectroscopic Study on the Energy Transfer Effect in Sm³⁺/Eu³⁺ Codoped Tetragonal LaOF Nanocrystals System[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(08): 2183-2186.

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https://www.gpxygpfx.com/EN/10.3964/j.issn.1000-0593(2011)08-2183-04 OR https://www.gpxygpfx.com/EN/Y2011/V31/I08/2183

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