Synthesis and Fluorescence of Europium-Doped Barium Fluoride Cubic Nanocolumns  

作　　者：连洪州 刘洁 叶泽人 石春山 

机构地区：[1]Key Laboratory of Rare Earth Chemistry and Physics

出　　处：《Journal of Rare Earths》2004年第1期79-82,共4页稀土学报（英文版）

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina ( 90 2 0 10 3 2 )

摘　　要：Europium-doped barium fluoride cubic nanocolumns were synthesized from the quaternary water in oil reverse microemulsions. In this process, the aqueous cores of water/cetyl trimethyl ammonium bromide (CTAB)/n-butanol/n-octane reverse microemulsions were used as microreactors for the precipitation of europium doped barium fluoride. XRD analysis shows that under the dopant concentration of 0.06% (molar fraction), the products are single phase. The result products are cubic column-like with about 30～50 nm edge length of cross section, and about 200 nm of length obtained from the transmission electron microscopy (TEM), and atomic force microscopy (AFM). Under the 0.06% (molar fraction) of dopant concentration, the fluorescence of Eu 2+ and Eu 3+ under the 589 of excitation wavelength is observed.Europium-doped barium fluoride cubic nanocolumns were synthesized from the quaternary water in oil reverse microemulsions. In this process, the aqueous cores of water/cetyl trimethyl ammonium bromide (CTAB)/n-butanol/n-octane reverse microemulsions were used as microreactors for the precipitation of europium doped barium fluoride. XRD analysis shows that under the dopant concentration of 0.06% (molar fraction), the products are single phase. The result products are cubic column-like with about 30～50 nm edge length of cross section, and about 200 nm of length obtained from the transmission electron microscopy (TEM), and atomic force microscopy (AFM). Under the 0.06% (molar fraction) of dopant concentration, the fluorescence of Eu 2+ and Eu 3+ under the 589 of excitation wavelength is observed.

关 键 词：OPTICS EUROPIUM barium fluoride cubic nanocolumns rare earths 

分 类 号：O482.3[理学—固体物理]