Photoluminescent properties of LaF_3:Eu^(3+) and GdF_3:Eu^(3+)nanoparticles prepared by co-precipitation method

T.Grzyb; S.Lis

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Photoluminescent properties of LaF_3:Eu^(3+) and GdF_3:Eu^(3+)nanoparticles prepared by co-precipitation method

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LaF3:Eu3+ and GdF3:Eu3+ nanoparticles were prepared by a co-precipitation method in the presence of the chelating agent, citric acid. The structural properties of the products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The average crystallite size was estimated from the full-width at half-maximum (FWHM) of the diffraction peaks by the Scherrer equation. The sizes of the nanoparticles were 12 nm for LaF3:Eu3+ and 17 nm for GdF3:Eu3+. The luminescent properties of the nanoparticles were investigated by excitation and emission spectra. Energy transfer from Gd3+ to Eu3+ was observed.

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《中国稀土学报：英文版》 |2009年第4期|588-592|共5页
作者
T.Grzyb; S.Lis;
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作者单位

Department of Rare Earths;

Faculty of Chemistry;

Adam Mickiewicz University;

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原文格式 PDF
正文语种 chi
中图分类特种结构材料;
关键词
纳米粒子; 共沉淀法; 光致发光特性; LaF3; 平均晶粒尺寸; 铕; 透射电子显微镜; 修饰;

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Photoluminescent properties of LaF_3:Eu^(3+) and GdF_3:Eu^(3+)nanoparticles prepared by co-precipitation method

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