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Proceedings 2018, 2(13), 1047; https://doi.org/10.3390/proceedings2131047

A New Method to Prepare Few-Layers of Nanoclusters Decorated Graphene: Nb2O5/Graphene and Its Gas Sensing Properties

1
Department of Physics and Earth Sciences, University of Ferrara, 44122 Ferrara, Italy
2
Center of Materials and Microsystems, Bruno Kessler Foundation, 38128 Trento, Italy
*
Author to whom correspondence should be addressed.
Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018.
Published: 12 November 2018
(This article belongs to the Proceedings of Eurosensors 2018)
PDF [490 KB, uploaded 12 November 2018]

Abstract

During the last decade, due to its excellent electrical, mechanical and thermal properties of chemically modified graphene has been extensively studied for many applications, such as polymer composites, energy-related materials, biomedical applications and sensors. The aim of this work is to evaluate the gas sensing performance of niobium oxide (Nb2O5) nanoclusters deposited onto few-layers graphene powder by magneton sputtering. Two different samples were prepared by changing electrical power of deposition. The materials were deeply morphologically, structurally and chemically characterized. Finally, they were deposited onto alumina substrates and their sensing properties were investigated vs. different gases, showing good sensing performance vs. ppm concentrations of NO2 at room temperature.
Keywords: chemoresistive gas sensors; room temperature; functionalized graphene; NO2 detection chemoresistive gas sensors; room temperature; functionalized graphene; NO2 detection
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Gaiardo, A.; Laidani, N.; Ullah, H.; Pepponi, G.; Fedrizzi, M.; Guidi, V.; Bellutti, P.; Fabbri, B.; Malagù, C.; Zonta, G.; Landini, N.; Krik, S.; Bartali, R.; Marchetti, F.; Valt, M. A New Method to Prepare Few-Layers of Nanoclusters Decorated Graphene: Nb2O5/Graphene and Its Gas Sensing Properties. Proceedings 2018, 2, 1047.

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