Photoluminescent ZrO2:Eu3+ Nanofibers Prepared via Electrospinning
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概要
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Europium-doped zirconium oxide (ZrO2:Eu3+) nanofibers were prepared via electrospinning, in which a mixture of zirconium chloride oxide octahydrate, europium nitrate hexahydrate, poly(vinyl pyrrolidone), dimethylformamide, and ethanol were electrospun at atmospheric conditions. Subsequent calcination to produce ZrO2:Eu3+ nanofibers with diameters around 300 nm. The crystal structure and photoluminescence of the ZrO2:Eu3+ nanofibers were studied as a function of dopant concentration and heating temperature. At a dopant concentration of 5 mol %, tetragonal phase crystals were observed. Photoluminescence spectra revealed several emission bands in the red region corresponding to the transition of $\text{$^{5}$D$_{0}$}\rightarrow\text{$^{7}$F$_{J}$}$ ($J=1,2,3,4$). Two most intense emission bands were observed at wavelengths of 606 and 591 nm due to the forced electric dipole ($\text{$^{5}$D$_{0}$}\rightarrow\text{$^{7}$F$_{2}$}$) and magnetic dipole ($\text{$^{5}$D$_{0}$}\rightarrow\text{$^{7}$F$_{1}$}$) transitions, respectively. This work demonstrates that one-dimensional photoluminescent materials can be generated by a two step electrospinning and calcination process.
- 2010-11-25
著者
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Okuyama Kikuo
Department Of Chemical Engineering Faculty Of Engineering Hiroshima University
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Ogi Takashi
Department Of Chemical Engineering Graduate School Of Engineering Hiroshima University
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Munir Muhammad
Department Of Physics Bandung Institute Of Technology (itb)
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Hogan Christopher
Department of Mechanical Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, MN 55455, U.S.A.
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Suryamas Adi
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
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Ogi Takashi
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
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Okuyama Kikuo
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
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Munir Muhammad
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
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