https://doi.org/10.1140/epjp/s13360-025-06790-3
Regular Article
Fabrication and tuning of the morphological, structural, and dielectric features of PVA/SnO2-SiC ternary nanocomposites for multifunctional nanoelectronics applications
Department of Physics, College of Education for Pure Sciences, University of Babylon, Babil, Iraq
a
pure.majeed.ali@uobabylon.edu.iq
Received:
15
February
2025
Accepted:
25
August
2025
Published online:
6
September
2025
The objective of this study is to improve the dielectric characteristics of polyvinyl alcohol (PVA), tin dioxide (SnO2), as well as silicon carbide (SiC) in order to facilitate the functionality of electronics nanodevices and flexible pressure sensors. The nanocomposites PVA/SnO2-SiC were prepared by casting with varied concentrations of (SnO2-SiC) nanoparticles (0, 2, 4, 6, and 8) wt.%. The structure and dielectric characteristics of PVA/SnO2-SiC nanostructures were explored. The optical microscopy images showed that network paths that act as charge carriers are formed inside the polymeric matrix with increasing concentrations of nanoparticles. The outcomes of the SEM measurement indicated that the surface morphology was uniform and well-distributed. X-ray analysis shows that the (SnO2-SiC) nanoparticles increase in the polymeric specimens, and the semi-crystalline ratio rises. The electrical properties of PVA/SnO2-SiC films revealed that the dielectric (constant and loss) increases with increasing nanoparticle concentrations and decreases when the frequency of the applied electric field increases. In contrast, the A.C electrical conductivity increases by increasing the frequency and concentrations of (SnO2-SiC). Finally, the structural and dielectric properties show that the PVA/SnO2-SiC nanocomposite films can be employed in various flexible nanoelectronics applications with low cost, high-energy storage and low loss. The pressure sensor results of PVA/SnO2-SiC nanostructures showed that their electrical capacitance (Cp) grows as applied pressure rises. As a result, pressure sensors have a higher sensitivity. Based on these findings, it is believed that PVA/SnO2-SiC nanocomposites may provide new insight into their potential application in energy storage systems.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
