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Hydrothermal synthesis and optical properties of undoped and Eu3+-doped zinc stannate nanocrystals

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In this work we report a hydrothermal approach for synthesis of zinc stannate (Zn2SnO4) nanocrystals. Our research focused on the effect of the molar ratio of initial chemicals, reaction temperature and reaction duration on the phase composition and the fluorescence properties. Structural and optical properties of the final products were investigated in detail. X-ray diffraction analysis indicated that the Zn2SnO4 nanocrystals possess face-centered cubic crystal structure. Raman scattering spectra exhibit two characteristic vibrational modes of Zn2SnO4 crystals. Optical band gap of Eu3+-doped Zn2SnO4 nanocrystals obviously depends on Eu3+ content.
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Hydrothermal synthesis and optical properties of undoped and Eu3+-doped zinc stannate nanocrystals