Synthesis and Fluorescence of Europium-Doped Barium Fluoride Cubic Nanocolumns
来源期刊：JOURNAL OF RARE EARTHS2004年第1期
论文作者：刘洁 叶泽人 石春山 连洪州
Key words：optics; europium; barium fluoride; cubic nanocolumns; rare earths;
Abstract: 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 Eu2+ and Eu3+ under the 589 of excitation wavelength is observed.
刘洁1，叶泽人1，石春山1，连洪州1
(1.Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China)
Abstract: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 Eu2+ and Eu3+ under the 589 of excitation wavelength is observed.
Key words:optics; europium; barium fluoride; cubic nanocolumns; rare earths;
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