Collection of scientific works Nanosystems, nanomaterials, nanotechnologies
Year 2025 Volume 23, Issue 2
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Rehab Shather ABDUL HAMZA1, Majeed Ali HABEEB1, and Idrees OREIBI2

1College of Education for Pure Sciences, Department of Physics, University of Babylon, Hillah, Iraq
2Directorate of Education Babylon, Ministry of Education, Babylon, Iraq

Influence of CuO–SiO2-Nanoparticles’ Addition on Dielectric Characteristics of PVA for Nanodielectric Applications

569–578 (2025)

PACS numbers: 72.80.Tm, 77.22.Ch, 77.22.Gm, 77.84.Lf, 81.07.Pr, 82.35.Np

Received 3 December, 2023

The nanocomposites consisting of polyvinyl alcohol (PVA), copper oxide (CuO), and silicon dioxide (SiO2) are produced using the solution cast method. The samples consisted of PVA serving as the organic host matrix, together with different amounts of nanosize CuO and SiO2 ranging from 0 to 6 wt.%. This study investigates the electrical properties of nanocomposites (NCs), namely, PVA–CuO–SiO2. An inquiry is carried out to examine the electrical properties of NCs throughout the frequency range of 100 to 5×106 Hz under standard temperature settings. The experimental findings indicate the reduction in the dielectric constant (ε′) and loss (ε″) of the PVA–CuO–SiO2 NCs with increasing frequency. The electrical conductivity σA.C. of an alternating current (A.C.) increases with higher frequencies. The ε′, ε″, and σA.C. of pure PVA increase with the increasing concentration of the CuO–SiO2 nanoparticles (NPs). The definitive results demonstrated that the PVA–CuO–SiO2 nanostructures have promising potential for various electrical and electronic nanodevices.

KEY WORDS: nanocomposites, PVA, CuO–SiO2 nanoparticles, electrical properties

DOI: https://doi.org/10.15407/nnn.23.02.0569

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