10.57647/j.jtap.2025.1905.46

Cost effective copper oxide thin layers by highly controlled spray pyrolysis method for optoelectronic devices

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  • Nardjes Randa Hamdaoui1,
  • Boussaada Salah Eddine*2,
  • Younes Hammoudi2,
  • Lamia Barkat1,
  • Abdelbacet Khelil1,
  • Cristina Bogatu Auricia3,
  • Dana Perniu3,
  • Anca Duta3,
  • Younes Mouchaal1,2,
  1. LPCMME Lab, Faculty of Exacte and applied Sciences, University Oran 1 Ahmed Ben Bella, 31000 Oran, Algeria
  2. Faculty of Exacte Sciences, Mustapha Stambouli Mascara University, 29000 Mascara, Algeria
  3. Center for Renewable Energy System and Recycling, R&D Institute of the Transilvania University of Brasov, Eroilor 29 Street, 500036, Brasov, Romania

Received: 2025-06-02

Revised: 2025-08-14

Accepted: 2025-08-26

Published in Issue 2025-09-30

Copyright (c) 2025 Nardjes Randa Hamdaoui, Boussaada Salah Eddine, Younes Hammoudi, Lamia Barkat, Abdelbacet Khelil, Cristina Bogatu Auricia, Dana Perniu, Anca Duta, Younes Mouchaal (Author)

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

1.
Hamdaoui NR, Eddine BS, Hammoudi Y, Barkat L, Khelil A, Auricia CB, et al. Cost effective copper oxide thin layers by highly controlled spray pyrolysis method for optoelectronic devices. J Theor Appl phys. 2025 Sep. 30;19(5). Available from: https://oiccpress.com/jtap/article/view/17676
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Abstract

Copper Oxide (CuO) thin films were deposited via spray pyrolysis, and the effect of precursor concentration on their structural, morphological, optical, and electrical properties was systematically investigated. X-ray diffraction confirmed a monoclinic crystal structure with optimal crystallinity at 0.06 M, yielding a crystallite size of 25.27 nm. SEM and AFM analyses revealed improved surface uniformity, larger grains, and reduced defects at this concentration. The optimized films exhibited 63% average transmittance in the visible range and an optical bandgap between 1.53 and 2.10 eV. These results demonstrate that cost-effective CuO thin films can achieve properties comparable to those of metal oxides produced by more expensive techniques, positioning them as promising candidates for optoelectronic and photovoltaic applications.

Keywords

  • CuO,
  • Spray pyrolysis,
  • XRD,
  • Optoelectronic,
  • Figure of merit
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