2025/06/02 by Hamdaoui, Nardjes Randa, Eddine, Boussaada Salah, Hammoudi, Younes +6
Materials Science · Engineering · #Copper-based nanomaterials and applications #Chalcogenide Semiconductor Thin Films #Laser-Ablation Synthesis of Nanoparticles
paper · doi:10.57647/j.jtap.2025.1905.46
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.