| Preparation and Characterization of Sol-Gel Derived Au Nanoparticle Dispersed Y2O3：Eu Films |
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| 引用本文： | 郭海 张慰萍 董宁 楼立人 尹民 Tillement O Mugnier J Bernstein E Brevet P F.Preparation and Characterization of Sol-Gel Derived Au Nanoparticle Dispersed Y2O3：Eu Films[J].中国稀土学报(英文版),2005,23(5):600-606. |
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| 作者姓名： | 郭海 张慰萍 董宁 楼立人 尹民 Tillement O Mugnier J Bernstein E Brevet P F |
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| 作者单位： | [1]Structure Research Laboratory, University of Science and Technology of China, Academia Sinica, Hefei230026, China [2]Department of Physics, University of Science and Technology of China, Hefei 230026, China [3]Laboratoire de Physico-Chimie des Materiaux Luminescents, CNRS-UMR 5620, Universite Claude BernardLyon I 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex, France [4]Department de Physique desMateriaux, CNRS-UMR 5586, Universite Claude Bernard Lyon I, 43 Boulevard du 11 Novembre 1918, 69622Villeurbanne Cedex, France [5]Laboratoire de Spectrometrie Ionieque et Moleculaire, CNRS-UMR 5579, Univer-site Claude Bernard Lyon I, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne Cedex , France |
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| 基金项目： | Project supported by “Programme de Recherches Avanc s-MX 99 05” between France and China |
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| 摘 要： | Gold nanoparticles dispersed Y2O3 films were prepared through a sol-gel method by using yttrium acetate and Au nanoparticles colloid as precursors. The films were characterized by X-ray diffraction （XRD）, transmission electron microscopy （TEM） and UV-VIS absorption spectra. XRD patterns and TEM images of Y2O3 ＋ Au films give the same resuits on structure and particle size as that of pure Y2O3 films. The surface plasma resonance （SPR） of Au nanoparticles in Y2O3 ＋ Au film was observed around 550 nm in the absorption spectrum and its position shifts to red with increasing annealing temperature is caused by the increase of dielectric constant of Y2O3 matrix and the size of Au nanoparticles. The second and third order nonlinear optical effects of Y2O3 ＋ Au films were also observed. The photoluminescent properties of Y2O3 ： Eu ＋ Au films were investigated and results indicate that there exist an energy transfer from Eu^3 ＋ to Au nanoparticles and this energy transfer decreases the emission of Eu^3 ＋ in Y2O3 ： Eu ＋ Au film.
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| 关 键 词： | 金 溶胶-凝胶法 衍生物 铕 薄膜 纳米复合材料 稀土 |
| 文章编号： | 1002-0721（2005）05-0600-07 |
| 收稿时间： | 2005-04-10 |
| 修稿时间： | 2005-05-18 |
Preparation and Characterization of Sol-Gel Derived Au Nanoparticle Dispersed Y2O3:Eu Films |
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| Guo Hai,Zhang Weiping,Dong Ning,Lou Liren,Yin Min,Tillement O,Mugnier J,Bernstein E,Brevet P F.Preparation and Characterization of Sol-Gel Derived Au Nanoparticle Dispersed Y2O3:Eu Films[J].Journal of Rare Earths,2005,23(5):600-606. |
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| Authors: | Guo Hai Zhang Weiping Dong Ning Lou Liren Yin Min Tillement O Mugnier J Bernstein E Brevet P F |
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| Abstract: | Gold nanoparticles dispersed Y2O3 films were prepared through a sol-gel method by using yttrium acetate and Au nanoparticles colloid as precursors. The films were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV-VIS absorption spectra. XRD patterns and TEM images of Y2O3+Au films give the same results on structure and particle size as that of pure Y2O3 films. The surface plasma resonance (SPR) of Au nanoparticles in Y2O3+Au film was observed around 550 nm in the absorption spectrum and its position shifts to red with increasing annealing temperature is caused by the increase of dielectric constant of Y2O3 matrix and the size of Au nanoparticles. The second and third order nonlinear optical effects of Y2O3+Au films were also observed. The photoluminescent properties of Y2O3:Eu+Au films were investigated and results indicate that there exist an energy transfer from Eu3+ to Au nanoparticles and this energy transfer decreases the emission of Eu3+ in Y2O3:Eu+Au film. |
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| Keywords: | sol-gel Y2O3+Au films nanocomposite photoluminescence rare earths |
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