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Correlation between molar concentration and properties of sprayed copper oxide thin films

Oluyemi, F. O. and Ogunmola, E. D. and Ajayi, A. A. and Olawole, C. Olukunle (2023) Correlation between molar concentration and properties of sprayed copper oxide thin films. Results in Optics, 11.

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Copper oxide precursor solutions containing 0.10 M, 0.15 M, 0.20 M and 0.25 M concentration of copper were deposited on a glass substrate using the spray pyrolysis method. The structural, optical and surface properties of the resulting copper oxide thin films were studied using x-ray diffraction, UV–visible spectroscopy and scanning electron microscopy. Structural studies indicate the absence of secondary phases of copper oxide in the spraydeposited copper oxide thin film with 0.10 M concentration. Optical characterization reveals highest absorbance and lowest transmittance at 0.10 M concentration with an estimated optical bandgap of 1.2 eV. The SEM micrographs reveals a non-porous and comparatively more homogenous surface at 0.10 M concentration. The results show that molar concentration of copper plays a vital role in the development of copper oxide (CuO) thin film for solar cell application. The results have further validated the theoretical predictions of the GW approximations on phases of copper oxide thin films.

Item Type: Article
Uncontrolled Keywords: Spray pyrolysis Concentration XRD SEM Bandgap
Subjects: Q Science > QC Physics
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Patricia Nwokealisi
Date Deposited: 04 Jun 2024 12:31
Last Modified: 04 Jun 2024 12:31

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