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Advances in Materials Science and Engineering
Volume 2013 (2013), Article ID 450820, 8 pages
http://dx.doi.org/10.1155/2013/450820
Research Article

Structural and Optical Properties of Chemical Bath Deposited Silver Oxide Thin Films: Role of Deposition Time

1National Centre for Energy Research and Development, University of Nigeria, Nsukka 41001, Nigeria
2Department of Physics and Astronomy, University of Nigeria, Nsukka 41001, Nigeria

Received 3 December 2012; Revised 21 March 2013; Accepted 22 March 2013

Academic Editor: Zhimin Liu

Copyright © 2013 A. C. Nwanya 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.

Abstract

Silver oxide thin films were deposited on glass substrates at a temperature of 50°C by chemical bath deposition technique under different deposition times using pure AgNO3 precursor and triethanolamine as the complexing agent. The chemical analysis based on EDX technique shows the presence of Ag and O at the appropriate energy levels. The morphological features obtained from SEM showed that the AgxO structures varied as the deposition time changes. The X-ray diffraction showed the peaks of Ag2O and AgO in the structure. The direct band gap and the refractive index increased as the deposition time increased and was in the range of 1.64–1.95 eV and 1.02–2.07, respectively. The values of the band gap and refractive index obtained indicate possible applications in photovoltaic and photothermal systems.