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<p>In the following study, Polyvinyl alcohol (PVA) as a matrix and a Cd–Cu nano-ferrite as a filler are used to synthesize a nano-composite film using the casting method while the Cd-Cu nano ferrite (Cd<sub>0.5</sub>Cu<sub>0.5-x</sub>Ag<sub>0.5-x</sub>Fe<sub>2</sub>O<sub>4</sub>) had different silver content (x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 wt %). The Fourier transition infrared spectroscopy (FTIR) is used from 400 to 5000&#xa0;cm<sup>−1</sup> to study the vibrational modes. The dielectric (ε), electrical conductivity (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\sigma\)</EquationSource> <EquationSource Format="MATHML"><math> <mi>σ</mi> </math></EquationSource> </InlineEquation>), and the impedance (Z) are measured as a function of frequency while the magnetic properties are measured via Vibrating Sample Magnetometer (VSM) at room temperature. The results showed that the nano composite can be suggested to be used as a dielectric material while the magnetic properties are affected by the filler content. On the other hand, the optical properties are measured showing the optical absorption coefficient (α), the refractive index (n) and the excitation coefficient (K) increases as the increases of doping ratio to PVA. The films have a good optical response because their refractive index and light absorption are higher at high photon energies and stable at lower photon energies. Also, the dielectric loss (Tan <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\delta\)</EquationSource> <EquationSource Format="MATHML"><math> <mi>δ</mi> </math></EquationSource> </InlineEquation>) is low for all the samples, which suggest this material is a good choice for use in optical devices.</p> Graphical abstract <p></p>

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Dispersion of Ag-Cu-Cd nano-ferrite particles into PVA film for optical, magnetic and AC electrical properties

  • 期刊论文

  • 发表日期：

    2025年9月14日

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  • M. M. Ali,
  • R. E. El shater,
  • A. M. A. Henaish

摘要

In the following study, Polyvinyl alcohol (PVA) as a matrix and a Cd–Cu nano-ferrite as a filler are used to synthesize a nano-composite film using the casting method while the Cd-Cu nano ferrite (Cd0.5Cu0.5-xAg0.5-xFe2O4) had different silver content (x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 wt %). The Fourier transition infrared spectroscopy (FTIR) is used from 400 to 5000 cm−1 to study the vibrational modes. The dielectric (ε), electrical conductivity ( \(\sigma\) σ ), and the impedance (Z) are measured as a function of frequency while the magnetic properties are measured via Vibrating Sample Magnetometer (VSM) at room temperature. The results showed that the nano composite can be suggested to be used as a dielectric material while the magnetic properties are affected by the filler content. On the other hand, the optical properties are measured showing the optical absorption coefficient (α), the refractive index (n) and the excitation coefficient (K) increases as the increases of doping ratio to PVA. The films have a good optical response because their refractive index and light absorption are higher at high photon energies and stable at lower photon energies. Also, the dielectric loss (Tan \(\delta\) δ ) is low for all the samples, which suggest this material is a good choice for use in optical devices.

Graphical abstract