Synthesis and characterization of nanostructured oxide films
Loading...
Date
2025-07-13
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
August 20, 1955 University -Skikda
Abstract
Nanostructured Cu1-xFexO thin films (x = 0, 0.10, 0.15, 0.20 and 0.25) were
succefully deposited on glass substrate heated at 350°C by using a simple and low cost spray
pyrolysis technique. The Structural, morphological, optical, magnetic and electrical properties
of the films were investigated. The X-Ray Diffraction spectra showed that all the samples
exhibited a single CuO monoclinic structure up to x = 0.20. The apparition of the secondary
α-Fe2O3 phase for x = 0.25 alongside CuO indicates a solubility of about 20% Fe in the host
CuO matrix. With increased Fe content and dislocation density, the crystallite size reduced
from approximately 46 to 33 nm, the band gap dropped from 3.075 eV for x = 0 to 2.974 eV
for x = 0.25, and the CuO unit cell volume contracted. The saturation magnetisation rises
from 0.166 to 0.603 emu, and the coercivity ranges between 17.6 and 231.5 Oe. The
squareness ratio varies from 0.108 to 0.497, suggesting that the prepared films are pseudosingle domains. The electrical resistivity decreases linearly with increasing Fe content from
42.1 to 5.8 kΩ.cm, and the electrical conductivity reaches 0.172 Ω-1.cm-1 for x = 0.25.
Description
Keywords
Synthesis, nanostructured