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Quantum sized SnO2 nanoparticles: Hydrothermal technique and optical properties

K. ANANDAN1,* , V. RAJENDRAN1

Affiliation

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

Abstract

By using ethylenediamine as both an alkali and ligand, quantum sized SnO2 nanoparticles were successfully synthesized with a facile hydrothermal technique. The as-synthesized products were studied by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersed X-ray spectroscopy (EDX), ultraviolet-visible (UV-vis) absorption spectroscopy and room-temperature photoluminescence (PL) spectroscopy. X-ray powder diffraction pattern of the sample is quite similar with the standard pattern of tetragonal SnO2 nanoparticles with average particle size was 3nm; SEM and TEM results shows that the spherical shaped with ultra-fine SnO2 nanoparticles. The special photoluminescence property of the SnO2 nanoparticles was attributed to the oxygen vacancies in the surface. Finally, the growth mechanism and special properties for the formation of quantum size SnO2 nanoparticles was also discussed..

Keywords

Semiconductor; SnO2; Nanoparticles; Quantum size; Optical properties.

Submitted at: Aug. 3, 2011
Accepted at: Sept. 15, 2011

Citation

K. ANANDAN, V. RAJENDRAN, Quantum sized SnO2 nanoparticles: Hydrothermal technique and optical properties, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 9, pp. 1126-1129 (2011)