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<p>Polyvinyl chloride (PVC)-based nanocomposites with increasing concentrations (i.e., 2 wt.%, 5 wt.%, and 10 wt.%) of nickel oxide (NiO) nanoparticles (NPs) were fabricated using the solution casting method. The PVC/NiO nanocomposites were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet–visible (UV–visible) spectroscopy, impedance measurements, and vibrating sample magnetometry (VSM). XRD measurements demonstrated the incorporation of NiO into the PVC matrix, with both crystalline and amorphous structure of NiO and PVC, respectively. SEM results revealed uniform distribution of NiO in PVC. The optical bandgaps of the PVC and 2%, 5% and 10% PVC/NiO samples were 4.03&#xa0;eV, 3.94&#xa0;eV, 3.86&#xa0;eV, and 3.80&#xa0;eV, respectively. Dielectric measurements showed that the dielectric constant, tangent loss, and AC conductivity were enhanced with increasing content of NiO in the PVC matrix. The addition of NiO NPs in the PVC polymer matrix resulted in a transition from a diamagnetic to ferromagnetic nature of PVC. The synthesized PVC/NiO nanocomposites can be used for applications such as optoelectronics, memory storage, and spintronics devices.</p>

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PVC Polymer/NiO Nanocomposites: Improved Optical, Dielectric, and Magnetic Properties for Device Applications

  • 期刊论文

  • 发表日期：

    2025年7月9日

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  • Abdul Ghaffar,
  • Sajid Hameed,
  • Muhammad Shahbaz Sarwar,
  • Ali Raza,
  • Robina Begum,
  • Hadia Noor,
  • Zahoor H. Farooqi

摘要

Polyvinyl chloride (PVC)-based nanocomposites with increasing concentrations (i.e., 2 wt.%, 5 wt.%, and 10 wt.%) of nickel oxide (NiO) nanoparticles (NPs) were fabricated using the solution casting method. The PVC/NiO nanocomposites were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet–visible (UV–visible) spectroscopy, impedance measurements, and vibrating sample magnetometry (VSM). XRD measurements demonstrated the incorporation of NiO into the PVC matrix, with both crystalline and amorphous structure of NiO and PVC, respectively. SEM results revealed uniform distribution of NiO in PVC. The optical bandgaps of the PVC and 2%, 5% and 10% PVC/NiO samples were 4.03 eV, 3.94 eV, 3.86 eV, and 3.80 eV, respectively. Dielectric measurements showed that the dielectric constant, tangent loss, and AC conductivity were enhanced with increasing content of NiO in the PVC matrix. The addition of NiO NPs in the PVC polymer matrix resulted in a transition from a diamagnetic to ferromagnetic nature of PVC. The synthesized PVC/NiO nanocomposites can be used for applications such as optoelectronics, memory storage, and spintronics devices.