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Preparation and optical properties of Y2O3/SiO2 powder

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Abstract

Y(NO3)3 and NH3·H2O were used as a raw materials, and nano-Y2O3 powder was successfully synthesized by a precipitation method. Employing TEOS as a raw material, SiO2 powder was successfully prepared by a alkoxide-hydrolysis method, and a Y2O3/SiO2 composite powder was obtained by coating. The Y2O3, SiO2, and Y2O3/SiO2 powders were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectrophotometer (FT-IR); the Y2O3 and Y2O3/SiO2 powders were further examined by photoluminescence (PL) spectra. The results indicated that the Y2O3 powder had a body-centered cubic structure with an average size of 35 nm, while the SiO2 powder was amorphous, with an average size of 145 nm and a narrow size distribution. The PL spectra of the Y2O3 and Y2O3/SiO2 powders showed that their wavelength of emission spectra were 585 nm, while their wavelength of excitation spectra were in the range of 240–260 nm. The optical properties of the Y2O3/SiO2 powder were identical to the Y2O3 powder.

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Authors and Affiliations

  1. School of Materials and Metallurgy, Northeastern University, Shenyang, 110819, China

    Xiaoyi Shen & Yuchun Zhai

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  1. Xiaoyi Shen
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  2. Yuchun Zhai
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Correspondence to Yuchun Zhai.

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Shen, X., Zhai, Y. Preparation and optical properties of Y2O3/SiO2 powder. Rare Metals 30, 33–38 (2011). https://doi.org/10.1007/s12598-011-0192-x

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  • DOI: https://doi.org/10.1007/s12598-011-0192-x

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