Open Access

A Detailed Investigation on Structural and Optical Properties of ZnO:Sn prepared by Co-precipitation Method

K. Vijayan, kvijayan@gmail.com
Department of Physics, Government Arts College(Autonomous), Coimbatore, TN, India. R. Leelavathi, Department of Physics, Government Arts College(Autonomous), Coimbatore, TN, India. K. Vivekanandan Department of Physics, Government Arts College(Autonomous), Coimbatore, TN, India.

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Abstract

ZnO:Sn nanopowders were synthesized by Co-precipitation method using zinc acetate dihydrate and tin chloride as a precursor. Co-precipitate of ZnO:Sn nanopowders with pure Zinc and different volume fractions of tin chloride (0.0250, 0.050, 0.1) were obtained by calcination process at 500 ^°C. The XRD studies have revealed that the grain size gradually decreased with increase in the content of Sn. The transformation of structural properties of the Sn dopant was confirmed by FESEM. EDAX results have confirmed the presence of ZnO and Sn in the powder. From the FT-IR spectra, the chemical bonding and the presence of particles of Sn were confirmed. From the UV-Vis. spectra, it has been found that the doped Sn increased the bandgap than pure Zinc. The blue region of ZnO:Sn  nanopowders was confirmed by PL studies. These results collectively indicated that the structure of ZnO nanopowders are significantly affected by Sn dopant.

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