Electrical conductive properties of some composites of gum Arabic biopolymer and magnetite nanoparticles

Bhakat, D and Barik, P and Bhattacharjee, A (2018) Electrical conductive properties of some composites of gum Arabic biopolymer and magnetite nanoparticles. In: Indian Journal of Pure and Applied Physics, 56 (6). pp. 428-433.

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Abstract

DC electrical conductive properties of some composites of gum arabic biopolymer (host) and magnetite nanoparticles (guest) synthesized in different weight percentages have been studied as a function of temperature and applied bias voltage to explore the effect of the guest on the electrical conduction of the host. Two types of trap distributions (single discrete and exponential) have been found in these composites. The observed results show that the conductivity of the composites increases with increasing guest content along with a decrease in activation energy. Percolation theory has been employed for the analysis of the room temperature electrical conductivity enhancement with the variation of guest content. The activation energy and the pre-exponential factor values estimated following Arrhenius relation satisfies the compensation law.

Item Type:	Journal Article
Publication:	Indian Journal of Pure and Applied Physics
Publisher:	National Institute of Science Communication and Information Resources (NISCAIR)
Additional Information:	The copyright for this article belongs to the National Institute of Science Communication and Information Resources (NISCAIR).
Keywords:	Compensation; Composites; Dark conductivity; Gum Arabic; Magnetite; Percolation
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	10 Aug 2022 11:16
Last Modified:	10 Aug 2022 11:16
URI:	https://eprints.iisc.ac.in/id/eprint/75520

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