https://doi.org/10.1140/epjb/s10051-026-01170-x
Research - Condensed Matter
Fabricating and controlling the morphological, microstructure and optical features of (CS-PVA-WC-SiO2) promising films for nanoelectronics devices and optical applications
Department of Physics, College of Education for Pure Sciences, University of Babylon, Babylon, Iraq
a
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Received:
21
October
2025
Accepted:
9
April
2026
Published online:
3
May
2026
Abstract
The current work aims to develop new hybrid nanostructures films to apply in various radiation shielding and optoelectronics nanodevices fields. The tungsten carbide (WC)-silicon dioxide (SiO2)-doped chitosan (CS)-po1yviny1a1cohol (PVA) new nanocomposites films were fabricated. The (CS-PVA/WC-SiO2) films exhibit outstanding properties compared to other nanomaterials, including low cost, excellent optical characteristics, flexibility, and lightweight nature. The microstructural, morphological and optical features for CS-PVA/WC-SiO2 films were investigated. The results indicated that the optical absorbance increased of (85%) and the refractive index increased of (39%) while the optical conductivity (σ) increased of (91%) at wavelength of 320 nm and concentration of (6.6 wt%) WC-SiO2 nanoparticles. The optical transmittance decreased (39%) at the wavelength of 320 nm and concentration of (6.6 wt%) WC-SiO2 nanoparticles. At photon energy of 4.78 eV, the absorption coefficient increased (80%) with increasing the concentration of (WC-SiO2) nanoparticles to (6.6 wt%). The Eg decreases from 4.7 to 3.1 eV for allowed transitions and from 4.3 to 1.7 eV for forbidden transitions when the concentration of WC-SiO2 nanoparticles rises to 6.6 wt%. The (CS-PVA/WC-SiO2) films were applied for gamma-ray shielding. These results indicated that the (CS-PVA/WC-SiO2) films may be considered as promising nanomaterials for optoelectronics and radiation attenuation applications.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2026
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.
