Abstract
Nanostructured ZnO thin films were spray pyrolysis deposited on glass substrates using the zinc acetate dihydrate as precursor at the substrate temperature of 523K. The effect of precursor solution volume on the structural, morphological, electrical, optical and gas sensing properties of ZnO thin film was investigated. The growth of nanopetals morphology was observed for the film deposited using 30ml. Enhanced electrical conductivity was observed for the film with nanopetals morphology but the optical transmittance was found to be decreased up to 25% than that of other films. The influence of tensile and compressive stress in the prepared samples was investigated. Further the room temperature acetaldehyde sensing behaviour of the ZnO film deposited using 45ml precursor volume is reported.
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