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Journal of Nanomaterials
Volume 2010, Article ID 341841, 8 pages
Research Article

Fabrication of ZnO and ZnO:Sb Nanoparticles for Gas Sensor Applications

1Advanced Technology and New Materials Research Institute, Mubarak City for Scientific Research and Technology Applications (MuCSAT), New Borg El-Arab City, Alexandria 21934, Egypt
2Physics Department, Faculty of Science, Al-Azhar University, Al-Azhar uni Street, 71524 Assiut, Egypt

Received 15 November 2009; Accepted 31 August 2010

Academic Editor: P. Panine

Copyright © 2010 A. B. Kashyout et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


ZnO and Sb-doped ZnO nanoparticles were successfully prepared using sol-gel technique. Different concentrations of triethanolamine (TEA) were utilized as the preparation procedure to act as complexing agent that enhances the doping probability of the formed Sb-doped ZnO nanopowder. Thick films of the prepared nanopowders were fabricated with spinner coating. Morphological characteristics, phase structure, chemical composition, thermal stability, and optical properties of the prepared nanopowders were measured and analyzed. The average crystallite size of ZnO and ZnO:Sb powders ranged between 19–28 nm according to the XRD calculations and TEM observations. The gas sensitivity of the homemade devices based on Sb-doped ZnO nanoparticles towards and gases as a function of temperature was measured and compared with undoped ZnO films. The gas sensitivity of the films was greatly improved after doping with Sb and reached its maximum value of ~86% for gas at 93:7 wt% of Zn:Sb.