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Dr. Mohammed Gamil Mohammed Abdelghany :: Publications:

Title:
Fabricating a highly sensitive graphene nanoplatelets resistance-based temperature sensor
Authors: Mohammed Gamil, Nagih M Shaalan, Ahmed Abd El-Moneim
Year: 2021
Keywords: Graphene nanoplatelets, Temperature sensor, Resistance-base sensor, Thin fi lm sensors
Journal: Sensor review
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Emerald Publishing Limited
Local/International: International
Paper Link:
Full paper Not Available
Supplementary materials Not Available
Abstract:

Purpose – This study aims to present an ef fi cient and reliable graphene nanoplatelets (GNPs)-based temperature sensor. Design/methodology/approach – A high-quality dispersion of GNPs was dropped by casting method on platinum electrodes deposited on a polyethylene terephthalate (PET) substrate. The GNPs were characterized by scanning electron microscope, Raman spectroscopy and X-ray diffraction spectra to ensure its purity and quality. The temperature sensing behavior of the fabricated sensor was examined by subjecting it to different temperatures, range from room temperature (RT) to 150 °C. Findings – Excellent resistance linearity with temperature change was achieved. Temperature coef fi cient of resistance of the fabricated sensor was calculated as 1.4  10 –3 °C. The sensor also showed excellent repeatability and stability for the measured temperature range. Good response and recovery times were evaluated at all the measured temperatures. With measuring the sensor response, the ambient temperature can be determined. Originality/value – The present work presents a new simply and low cost fabricated temperature sensor based on GNPs working at a wide temperature range.

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