<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Nanostructured CdO thin films have been prepared on glass substrates by spray pyrolysis technique using perfume atomizer from fresh and aged (1, 2, 3 and 4 days) precursor solutions. XRD studies confirm that all the films exhibit cubic crystal structure with a (1 1 1) preferential orientation. The preferential orientation factor f(1 1 1) increases with an increase in aging the period of precursor solution. The 2θ value of the (1 1 1) plane shifts towards lower Bragg angles with aging inferring an expansion in the lattice volume of the aged films. Increased crystallite size is observed for the 3-days aged film for which minimum strain and dislocation density values are obtained. Optical transparency increases with an increase in aging period of the precursor solution and the optical band gap exhibits a red shift from 2.48 eV to 2.32 eV. Minimum resistivity of 0.78 × 10<sup>−2</sup> Ω·cm is observed for the CdO film prepared from 3-days aged solution. The obtained results infer that the CdO film prepared from 3-days aged solution exhibits better physical properties than the others.</p></abstract>

Nanostructured CdO thin films have been prepared on glass substrates by spray pyrolysis technique using perfume atomizer from fresh and aged (1, 2, 3 and 4 days) precursor solutions. XRD studies confirm that all the films exhibit cubic crystal structure with a (1 1 1) preferential orientation. The preferential orientation factor f(1 1 1) increases with an increase in aging the period of precursor solution. The 2θ value of the (1 1 1) plane shifts towards lower Bragg angles with aging inferring an expansion in the lattice volume of the aged films. Increased crystallite size is observed for the 3-days aged film for which minimum strain and dislocation density values are obtained. Optical transparency increases with an increase in aging period of the precursor solution and the optical band gap exhibits a red shift from 2.48 eV to 2.32 eV. Minimum resistivity of 0.78 × 10−2 Ω·cm is observed for the CdO film prepared from 3-days aged solution. The obtained results infer that the CdO film prepared from 3-days aged solution exhibits better physical properties than the others.

Aging effect of the precursor solution on the structural, morphological and opto-electrical properties of spray deposited CdO thin films

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Nanostructured CdO thin films have been prepared on glass substrates by spray pyrolysis technique using perfume atomizer from fresh and aged (1, 2, 3 and 4...

Aging effect of the precursor solution on the structural, morphological and opto-electrical properties of spray deposited CdO thin films

Published Online: Mar 06, 2019

Page range: 1 - 7

Received: Apr 12, 2016

Accepted: Dec 17, 2018

DOI: https://doi.org/10.2478/msp-2019-0009

Keywords
X-ray diffraction, aging, crystal structure, preferential orientation, precursor

© 2019 N. Raja et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Aging effect of the precursor solution on the structural, morphological and opto-electrical properties of spray deposited CdO thin films

Published Online: Mar 06, 2019

Page range: 1 - 7

Received: Apr 12, 2016

Accepted: Dec 17, 2018

DOI: https://doi.org/10.2478/msp-2019-0009

KeywordsX-ray diffraction, aging, crystal structure, preferential orientation, precursor

© 2019 N. Raja et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
X-ray diffraction, aging, crystal structure, preferential orientation, precursor