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Waste to Wealth Concept: Disposable RGO Filter Paper for Flexible Temperature Sensor Applications

Neella, Nagarjuna and Kedambaimoole, Vaishakh and Gaddam, Venkateswarlu and Nayak, M M and Rajanna, K (2018) Waste to Wealth Concept: Disposable RGO Filter Paper for Flexible Temperature Sensor Applications. In: 62nd DAE Solid State Physics Symposium, DEC 26-30, 2017, Mumbai, INDIA.

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Official URL: https://dx.doi.org/10.1063/1.5028787


We have developed a flexible reduced graphene oxide (RGO) temperature sensor on filter paper based cellulose substrate using vacuum filtration method. One of the most commonly used synthesized methods for RGO thin films is vacuum filtration process. It has several advantages such as simple operation and good controllability. The structural analysis was carried out by FE-SEM, in which the surface morphology images confirm the formation of RGO nanostructures on the filter paper substrate. It was observed that the pores of the filter paper were completely filled with the RGO material during the filtration process, subsequently the formation of continuous RGO thin films. As a results, the RGO films exhibits a piezoresistive property. The resulted RGO based films on the filter paper reveals the semiconducting behavior having sensitivity of 0.278 Omega/degrees C and negative temperature coefficient (NTC) about -0.00254 Omega / Omega /degrees C. Thus, we demonstrate a simplified way for the fabrication of RGO films on filter paper that possesses better and easier measurable macroscopic electrical properties. Our approach is for easy way of electronics, cost-effective and environment friendly fabrication route for flexible conducting graphene films on filter paper. This will enable for the potential applications in flexible electronics in various fields including biomedical, automobile and aerospace engineering.

Item Type: Conference Proceedings
Additional Information: Copy right of this article belong to AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Department/Centre: 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: 20 Jun 2018 14:38
Last Modified: 20 Jun 2018 14:38
URI: http://eprints.iisc.ac.in/id/eprint/60059

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