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Published in: Polymer Bulletin 6/2024

17-08-2023 | ORIGINAL PAPER

Investigation on the optical and transport properties of PVA/Ag incorporated ZnO nanocomposites for optoelectronic and electronic device application

Authors: T. Suma Chanu, K. Jugeshwar Singh, K. Nomita Devi

Published in: Polymer Bulletin | Issue 6/2024

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Abstract

In this paper, optical and transport properties of Polyvinyl Alcohol/Silver incorporated Zinc Oxide (PVA/Ag–ZnO) nanocomposites of varying Ag–ZnO nanoparticles content prepared by solution casting method are studied to explore their multifunctional applications. The nanocomposites are characterized using X-ray diffraction, Scanning electron microscope, Energy-dispersive X-ray analysis, UV–Visible spectroscopy and Fourier transform infra-red spectroscopy. The UV–visible spectra showed zero transmittance in the UV region with increasing Ag–ZnO nanoparticles content in the PVA matrix suggesting that the nanocomposites could be used as a potential UV shielding material. The optical band gap energy decreases from 5.77 to 1.54 eV with increasing Ag–ZnO nanoparticles content in the PVA matrix. Frequency- and temperature-dependent dielectric measurement of the samples reveals maximum dielectric constant at PVA/15 wt% Ag–ZnO nanocomposite. Dielectric loss results showed a lossless behaviour at higher frequencies (< 0.2), suggesting that the prepared samples are suitable for use in high-frequency applications. The AC conductivity studies reveal that electrical conduction mechanism in the nanocomposites is governed by the correlated barrier hopping mechanism. Activation energy calculation indicates the involvement of two different types of conduction mechanism in the samples. The Nyquist plot for all the samples is fitted using the equivalent circuit model. The studied results show that the PVA/Ag–ZnO nanocomposites can serve as potential candidates for optoelectronic and electronic device application.

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Appendix
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Literature
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Metadata
Title
Investigation on the optical and transport properties of PVA/Ag incorporated ZnO nanocomposites for optoelectronic and electronic device application
Authors
T. Suma Chanu
K. Jugeshwar Singh
K. Nomita Devi
Publication date
17-08-2023
Publisher
Springer Berlin Heidelberg
Published in
Polymer Bulletin / Issue 6/2024
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-023-04944-w

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