Screen Printed rGO-Pd Nana-Composite films on a Flexible Substrate as Temperature Sensor

Nuthalapati, S and Kedambaimoole, V and Shirhatti, V and Neella, N and Gaddam, V and Nayak, MM and Rajanna, K (2018) Screen Printed rGO-Pd Nana-Composite films on a Flexible Substrate as Temperature Sensor. In: 3rd International Conference for Convergence in Technology, I2CT 2018, 6 - 8 April 2018, Pune.

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Abstract

We report, a screen printed nano-composite films made with reduced Graphene Oxide (rGO) and Palladium (Pd) for temperature sensor application. The rGO was synthesized using modified Hummer's method and Pd was mixed with as-synthesized rGO to avoid the agglomeration formed by rGO nano sheets. An array of rGO-Pd nano-composite films were fabricated on flexible kapton substrate using screen printing technique, which is of low cost and simple process. As-synthesized rGO and rGO-Pd nano-composite's surface morphology and crystallinity were studied using Field Emission-Scanning Electron Microscope (FE-SEM) and X-ray diffraction (XRD). As-prepared nanocomposite films were tested using cold and hot chamber to verify it's response with respect to change in temperature. It was observed that the film responds linearly with negative temperature coefficient (NTC). The sensitivity and temperature coefficient of resistance (TCR) of the as-fabricated nanocomposite films were observed to be 0.7028Ω K and. -2.0312x 10-3 Ω/Ω K respectively. These flexible temperature sensors can be used in the field of biomedical, food processing, aerospace, communication and automobile for monitoring of temperature.

Item Type:	Conference Paper
Publication:	2018 3rd International Conference for Convergence in Technology, I2CT 2018
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Fighter aircraft; Graphene; Nanocomposites; Nanosensors; Nanosheets; Oxide films; Scanning electron microscopy; Screen printing; Temperature; Temperature sensors; Thermal processing (foods), Crystallinities; Field emission scanning electron microscopes; Flexible substrate; Kapton substrate; Reduced graphene oxides (RGO); Screen printing technique; Temperature coefficient of resistance; Temperature response, Nanocomposite films
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	04 Aug 2022 06:09
Last Modified:	04 Aug 2022 06:09
URI:	https://eprints.iisc.ac.in/id/eprint/75157

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