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Highly flexible and sensitive graphene-silver nanocomposite strain sensor

Neella, Nagarjuna and Gaddam, Venkateswarlu and Rajanna, K and Nayak, MM and Srinivas, T (2015) Highly flexible and sensitive graphene-silver nanocomposite strain sensor. In: 2015 IEEE SENSORS, NOV 01-04, 2015, Busan, SOUTH AFRICA, pp. 1677-1680.

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Official URL: http://dx.doi.org/10.1109/IPDPSW.2015.87

Abstract

We are reporting, a novel reduced graphene oxide (RGO) and silver (Ag) nanocomposite based piezoresistive thin film sensor realized on kapton (polyimide) membrane substrate by drop casting method for strain sensing application. Incorporation of small quantity of (Ag) fillers into RGO, subsequently it can create a novel nanocomposite with improved structural and functional properties. The as-synthesized RGO and nanocomposite were characterized using X-ray diffraction (XRD), field emission-scanning electron microscope (FE-SEM) for their structural properties and morphology analysis. As fabricated nanocomposite strain sensor undergoes piezoresistive behavior when mechanical strain is applied to the flexible substrate and its output resistance variations have been observed. The electromechanical property of nanocomposite was analyzed with mechanical cantilever bending method and the gauge factor of about 9 to 12 was observed. The change of electrical resistance of the nanocomposite film can be used in sensing mechanism for changes in chemical, biological, vibrational, temperature, pressure, load or force and displacement sensor applications.

Item Type: Conference Proceedings
Additional Information: Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Division of Interdisciplinary Research > Centre for Nano Science and Engineering
Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Depositing User: Id for Latest eprints
Date Deposited: 08 Oct 2016 07:17
Last Modified: 08 Oct 2016 07:17
URI: http://eprints.iisc.ac.in/id/eprint/54682

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