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Preparation of Cd-doped SnO2 nanoparticles by sol–gel route and their optical properties

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Abstract

Nanocrystalline cadmium doped tin oxide (SnO2) powders of about 2.5–4.5 nm in size have been synthesized by using different solvents via sol–gel method. The obtained samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Energy dispersive X-ray analysis (EDX), Transmission electron spectroscopy (TEM), UV-Vis absorption and Photoluminescence (PL) spectroscopy. The PL emission spectra revealed that the band centered at 452 nm might be related with oxygen vacancies. A spherical, small rod and slice like morphologies of the prepared Cd-SnO2 nanoparticles were observed in the SEM and TEM studies. The presence of Cd modifies the structural, morphological and optical properties of the tin oxide nanoparticles.

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Acknowledgments

The authors are grateful to the University Grant Commission for extending financial support to carryout this work.

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Authors and Affiliations

  1. Department of Physics, Presidency College, Chennai, 600 005, Tamilnadu, India

    S. Gnanam & V. Rajendran

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  1. S. Gnanam
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  2. V. Rajendran
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Correspondence to S. Gnanam.

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Gnanam, S., Rajendran, V. Preparation of Cd-doped SnO2 nanoparticles by sol–gel route and their optical properties. J Sol-Gel Sci Technol 56, 128–133 (2010). https://doi.org/10.1007/s10971-010-2285-7

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  • DOI: https://doi.org/10.1007/s10971-010-2285-7

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