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Enhanced structural, optical, dielectric, and electrical properties in polymer nanocomposite films via loading AgNO3 NPs for emerging optical and electrical applications

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Abstract

This work explores the development and properties of novel nanocomposite materials. The nanocomposites were synthesized using a casting method and comprised blends of polyvinyl alcohol (PVA) and sodium alginate (NaAlg) with varying concentrations of silver nitrate nanoparticles (AgNO3 NPs). XRD analysis revealed an increasing trend in the amorphous character of the PVA/NaAlg blends with the addition of AgNO3 NPs. This suggests improved dispersion of the nanoparticles within the polymer matrix. FTIR results indicated the formation of potential molecular interactions between the polymer chains and the AgNO3 nanofillers, potentially influencing the overall material properties. UV–Vis spectroscopy, along with Tauc’s relation, was used to determine the direct and indirect bandgap energies of the nanocomposites. Notably, the addition of 7 wt% AgNO3 NPs led to a significant decrease in the direct bandgap energy (Eg) of the pristine PVA/NaAlg blend, from 5.03 eV to 4.69 eV. This reduction suggests improved light absorption potential within the nanocomposite. The dielectric behavior and electrical conductivity of the nanocomposite films were also investigated. Interestingly, the dielectric constant and dielectric loss exhibited an opposite trend compared to the AC conductivity. While AC conductivity increased with frequency, the dielectric constant and loss decreased. However, the study revealed a positive correlation between AgNO3 concentration and the dielectric loss and constant values, indicating an influence of AgNO3 content on the dielectric response. The fabricated PVA/NaAlg-AgNO3 nanocomposite films exhibit promising properties, including improved AC conductivity and dielectric characteristics. These findings suggest their potential application in various technological fields, such as optoelectronic devices and electrical applications.

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Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Acknowledgements

The authors extend their appreciation to Taif University, Saudi Arabia, for supporting this work through project number (TU-DSPP-2024-188).

Funding

This research was funded by Taif University, Saudi Arabia, Project No.(TU-DSPP-2024-188).

Author information

Authors and Affiliations

  1. Department of Chemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia

    Azza A. Al-Ghamdi, Fatimah Mohammad H. AlSulami, Reema H. Aldahiri & Ahlam I. Al-Sulami

  2. Department of Physics, College of Science, Taif University, 21944, Taif, Saudi Arabia

    Norah Algethami

  3. Department of Chemistry, College of Science, Qassim University, 51452, Buraydah, Qassim, Saudi Arabia

    Jawza Sh Alnawmasi

  4. Department of Physics, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt

    E. M. Abdelrazek

  5. Physics Department, Faculty of Science, Ibb University, Ibb, Yemen

    M. O. Farea

  6. Department of Physical Sciences, College of Science, University of Jeddah, Jeddah, Saudi Arabia

    Maha A. Alqarni & Haifa Mohammed Alghamdi

  7. Physics Department, Faculty of Applied Science, Amran University, Sana’a, Yemen

    A. Rajeh

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  1. Azza A. Al-Ghamdi
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Contributions

Azza A. Al-Ghamdi: software, formal analysis, data curation, writing—review and editing. Norah Algethami: formal analysis, software, writing—review and editing. Fatimah Mohammad H. AlSulami: methodology, writing—review and editing, formal analysis, validation, visualization. Reema H. Aldahiri: writing—original draft, methodology, writing—review and editing, resources, formal analysis. Ahlam I. Al-Sulami: conceptualization, methodology, writing—original draft, writing—review and editing. Jawza Sh Alnawmasi: data curation, visualization, writing—original draft, writing—review and editing. E. M. Abdelrazek: software, formal analysis, writing—review and editing. M. O. Farea: validation, data curation, writing—original draft, writing—review and editing. Maha A. Alqarni: software, formal analysis, writing—review and editing. Haifa Mohammed Alghamdi: methodology, writing—review and editing, validation, visualization. A. Rajeh: methodology, writing—review and editing. All authors have given approval to the final version of the manuscript.

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Correspondence to A. Rajeh.

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Al-Ghamdi, A.A., Algethami, N., AlSulami, F.M.H. et al. Enhanced structural, optical, dielectric, and electrical properties in polymer nanocomposite films via loading AgNO3 NPs for emerging optical and electrical applications. J Mater Sci: Mater Electron 35, 1134 (2024). https://doi.org/10.1007/s10854-024-12899-5

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