https://doi.org/10.1140/epjb/s10051-024-00670-y
Regular Article - Solid State and Materials
In-depth study of dielectric properties of iron chloride embedded polyaniline nanocomposites
1
Department of Physics, Baba Mastnath University, Asthal Bohar, 124021, Rohtak, Haryana, India
2
Department of Basic and Applied Sciences, Bhagat Phool Singh Mahila Vishwavidyalaya, Khanpur Kalan, 131305, Sonipat, Haryana, India
3
Department of Chemistry, Maharshi Dayanand University, 124001, Rohtak, Haryana, India
4
Department of Applied Science, Kalpana Chawla Government Polytechnic for Women, 134003, Ambala, Haryana, India
5
Department of Physics, Amity School of Applied Sciences, Amity University, 122413, Gurugram, Haryana, India
Received:
27
December
2023
Accepted:
11
March
2024
Published online:
30
March
2024
In the present research work, the pristine polyaniline and iron chloride-embedded polyaniline nanocomposites were synthesized by adopting the chemical oxidative polymerization route. The AC conductivity and dielectric properties of the titled samples were measured in temperature and frequency range of 173–373 K and 100 mHz to 1 MHz, respectively. The result reveals that the dielectric constant of synthesized samples increases as temperature increases whereas it decreases with an increase in applied frequency. The dielectric constant of pristine polyaniline found to be ∼ 497 which attains value ∼ 875 on the addition of 25 wt% iron chloride, which indicates that dielectric properties are strongly affected by the doping of iron chloride. In addition to that various theoretical models such as Arrhenius model, Jonscher power law, etc. were employed to analyze the charge transport mechanism. The low value of AC conductivity signifies its strong dependency on both frequency and temperature. AC conductivity increases with the increase in operating temperature as well as applied frequency, which may be attributed to the increase in the concentration of iron chloride trapped charge carriers.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2024. 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.
