https://doi.org/10.1140/epjp/s13360-025-07052-y
Regular Article
Gold nanoparticles/nanosecond laser ablation improved optical, thermal, mechanical, electrical and dielectric properties of polyethylene oxide polymer for advanced optoelectronic applications
1
Department of Physics, College of Science, Taibah University, Madinah, Saudi Arabia
2
Mathematical and Natural Sciences Department, Faculty of Engineering, Egyptian Russian University, 11829, Badr City, Cairo, Egypt
a
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Received:
15
June
2025
Accepted:
10
November
2025
Published online:
21
November
2025
Abstract
Polymer-noble nanofiller hybrids of tunable physical and chemical features are favorable and fascinating materials because of their uses in the evolution of flexible-type advanced optoelectronic applications. In this work, gold nanoparticles (Au NPs) were synthesized via the Salvia officinalis (S. officinalis) extract and incorporated into the polyethylene oxide (PEO) polymer through the solution casting method. The PEO/Au nanocomposite was subjected to the nanosecond laser radiation at various time intervals (5, 10, and 20 min). The structural and morphological properties of these NPs and the prepared polymer nanocomposites before and after the irradiation process were studied through TEM, XRD, SEM, and FT-IR techniques. The shape/size of Au NPs, spherulite morphology, the semicrystalline structures, and nanoparticle-polymer interactions of these films had been considerably affected by the dispersed Au NPs and the laser-irradiation process. The optical characteristics were measured by UV/VIS technique, where the surface plasmon resonance of Au NPs, the optical bandgap energy (
), Urbach tail energy (
), and the refractive index (n) were investigated. These optical parameters are influenced nonlinearly due to the irradiation process. The effects of filling and irradiation processes on the tensile stress–strain behavior and the thermal stability of PEO were studied. Further, the thermal activation energy was determined by the Coats–Redfern equation. AC electrical conductivity, dielectric parameters, electric impedance spectra, and Argand plots of these films as flexible nanodielectrics were obtained in the frequency range of 0.1 Hz–10 MHz by broadband dielectric spectroscopy. Based on the experimental results, the laser-irradiated PEO/Au nanocomposites are suitable for high-performance optoelectronic/energy storage devices and bio-engineering systems such as optical coatings, optical bandgap tuners, integral thin film capacitors, electrical conductivity regulators, development of solid polymer electrolyte, and high permittivity tunable nanodielectric thin film.
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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.
