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ZAINAB SABRI JABER and MAJEED ALI HABEEB
Structural and A.C. Electrical Properties of
Polyvinyl Alcohol/Iron Oxide Nanocomposites for Electronic and Electrical Applications
675–685 (2024)
PACS numbers: 72.80.Tm, 77.22.Ch, 77.22.Gm, 78.30.-j, 78.67.Sc, 81.07.Pr, 82.35.Np
The PVA–Fe2O3-nanocomposites’ films were made using the casting method with various weight
percentages 0, 2, 4, 6 of nanoparticles. When compared to pure PVA–Fe2O3 film, Fourier transform-based
infrared (FTIR) spectroscopy spectra demonstrate a change in a peak location and, moreover, changes in terms
of shape and intensity that suggests decoupling between the corresponding vibrations of iron-oxide
nanoparticles (NPs). Images taken with optical microscopy reveal a distinct difference between the samples
without and with iron-oxide NPs. When concentration reaches 6% weight, the iron-oxide nanoparticles create a
continuous network inside the polymer. The dielectric characteristics of nanocomposites demonstrate that, as
Fe2O3-NPs’ concentrations rise, the dielectric constant, dielectric loss, and alternating-current electrical
conductivity of PVA–Fe2O3 nanocomposites are increased. Additionally, when the frequency increases, the
electrical conductivity of PVA–Fe2O3 nanocomposites increases, while their dielectric constant and
dielectric loss fall. Based on these findings, nanostructures formed of PVA doped with Fe2O3 show themselves
as promising materials for optoelectronic nanodevices due to improvements in structural and A.C. electrical
properties
KEY WORDS: nanocomposites, structural properties, electrical properties, electronic applications
DOI: https://doi.org/10.15407/nnn.22.03.675
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