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Hydrothermal synthesis of solvents assisted SnO2 nanoparticles and their optical properties

J. GAJENDIRAN1,* , V. RAJENDRAN1

Affiliation

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

Abstract

A comparative study of size, morphology, surface area and optical properties of tin oxide (SnO2) nanoparticles has been reported in this article. SnO2 nanoparticles have been successfully synthesized by using different solvents such as water, water-butanol and water-ethylene glycol via hydrothermal method. X-ray powder diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Energy dispersive X-ray spectra (EDX), UV–vis absorption and Photoluminescence (PL) spectra were used to characterize the calcined SnO2 samples. XRD analysis revealed that all relevant Bragg reflection for tetragonal rutile structure of SnO2 nanoparticles. The non-uniform, uniform, and well dispersed spherical nanoparticles like morphologies of the calcined water, water-butanol and water-ethylene glycol mediated SnO2 samples in the SEM and TEM images. The band gap energies were calculated to be 3.73, 3.78 and 3.81eV from the UV-vis absorbance spectra. PL emission spectra show that the SnO2 nanoparticles generate a visible light emission that acts as a luminescent centre..

Keywords

Semiconductor, SnO2, solvents, hydrothermal method, Optical properties.

Submitted at: June 1, 2011
Accepted at: Sept. 18, 2013

Citation

J. GAJENDIRAN, V. RAJENDRAN, Hydrothermal synthesis of solvents assisted SnO2 nanoparticles and their optical properties, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 9-10, pp. 1059-1063 (2013)