Highly sensitive, scalable reduced graphene oxide with palladium nano-composite as strain sensor

Nuthalapati, Suresh and Shirhatti, Vijay and Kedambaimoole, Vaishakh and Neella, Nagarjuna and Nayak, M M and Rajanna, K and Takao, Hidekuni (2020) Highly sensitive, scalable reduced graphene oxide with palladium nano-composite as strain sensor. In: NANOTECHNOLOGY, 31 (3).

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Abstract

We report a novel strain sensor based on reduced graphene oxide (rGO) with palladium (Pd) nano-composite. The sensor was fabricated on the SS304 stainless-steel substrate using a screen-printing method. Graphene oxide was synthesized using a modified Hummer's method and reduced using a chemical route. Field emission-scanning electron microscope, x-ray diffraction and Raman spectroscopy were used to characterize the as-synthesized nano-composite. The as-fabricated strain sensor was tested for tensile strain using Micro-universal Test Machine and the change in resistance for different strains was recorded. The sensor response was observed to be stable and linear within the applied strain range of 0-3000 microstrains, and an average gauge factor of 42.69 was obtained in this range.

Item Type:	Journal Article
Publication:	NANOTECHNOLOGY
Publisher:	IOP PUBLISHING LTD
Additional Information:	Copyright of this article belongs to IOP PUBLISHING LTD
Keywords:	rGO; rGO-Pd nano-composite; strain sensor
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	04 Feb 2020 09:58
Last Modified:	04 Feb 2020 09:58
URI:	http://eprints.iisc.ac.in/id/eprint/64239

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