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Proceedings Paper

Synthesis of ZnO nanoparticles by hydrothermal method
Author(s): Aneesh N. Pacheri Madathil; K. A. Vanaja; M. K. Jayaraj
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Paper Abstract

Stable, OH free zinc oxide (ZnO) nanoparticles were synthesized by hydrothermal method by varying the growth temperature and concentration of the precursors. The formation of ZnO nanoparticles were confirmed by x-ray diffraction (XRD), transmission electron microscopy (TEM) and selected area electron diffraction (SAED) studies. The average particle size have been found to be about 7-24 nm and the compositional analysis is done with inductively coupled plasma atomic emission spectroscopy (ICP-AES). Diffuse reflectance spectroscopy (DRS) results shows that the band gap of ZnO nanoparticles is blue shifted with decrease in particle size. Photoluminescence properties of ZnO nanoparticles at room temperature were studied and the green photoluminescent emission from ZnO nanoparticles can originate from the oxygen vacancy or ZnO interstitial related defects.

Paper Details

Date Published: 17 September 2007
PDF: 9 pages
Proc. SPIE 6639, Nanophotonic Materials IV, 66390J (17 September 2007); doi: 10.1117/12.730364
Show Author Affiliations
Aneesh N. Pacheri Madathil, Cochin Univ. of Science and Technology (India)
K. A. Vanaja, Cochin Univ. of Science and Technology (India)
M. K. Jayaraj, Cochin Univ. of Science and Technology (India)

Published in SPIE Proceedings Vol. 6639:
Nanophotonic Materials IV
Zeno Gaburro; Stefano Cabrini, Editor(s)

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