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- W2267016779 abstract "Both silica glass materials singly doped with rare earth organic complex and co-doped with Al^3+ were prepared by in situ sol-gel method respectively. XRD and SEM measurements were performed to verify the non-crystalline structure of the glass. The excitation spectra, emission spectra and IR spectra were measured to analyze the influence of the glass contents on the structure of the glass and the energy level of the doped Eu(IH) ions. The effect of Al^3+ on the photoluminescence properties of rare earth organic complex in silica glass was investigated. The IR spectra indicated that the in situ synthesized europium complex molecule was confined to the micropores of the host and the vibration of the ligands was frozen. When Al2O3 was doped into the silica host gel, the rare earth ions in the silica network were wrapped up and dispersed by Al2O3, so the distribution of Eu(Ⅲ) complex in the host was morehomogeneous, and the luminescence intensity of ^5D0-^7F2 transition emission of the Eu^3+ ions was improved. The results showed that an appropriate amount of Al^3+ added to the gel glass improved the emission intensity of the complex in the silica glass, and when the content of Al2O3 reached 4 mol%, the maximum emission intensity could be obtained compared with that of other samples containing different Al2O3 contents." @default.
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- W2267016779 date "2005-01-01" @default.
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- W2267016779 title "Effect of Al2O3 on the Structure and Photoluminescence Properties of Sol-gel Glass Doped with Rare Earth Organic Complex" @default.
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