Journal
MATERIALS LETTERS
Volume 65, Issue 17-18, Pages 2572-2574Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2011.06.021
Keywords
Zinc oxide thin film; Sol-gel preparation; Annealing; X-ray diffraction; Atomic force microscopy; Optical properties
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This investigation deals with the effect of annealing temperature on the structural, topographical and optical properties of Zinc Oxide thin films prepared by sol-gel method. The structural properties were studied using X-ray diffraction and the recorded patterns indicated that all the films had a preferred orientation along (002) plane and the crystallinity along with the grain size were augmented with annealing temperature. The topographical modification of the films due to heat treatment was probed by atomic force microscopy which revealed that annealing roughened the surface of the film. The optical properties were examined by a UV-visible spectrophotometer which exhibited that maximum transmittance reached nearly 90% and it diminished with increasing annealing temperature. (C) 2011 Elsevier B.V. All rights reserved.
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