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Proceedings 2017, 1(4), 468; doi:10.3390/proceedings1040468

Individual Gallium Oxide Nanowires for Humidity Sensing at Low Temperature

1
Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona (UB), c/Martí i Franquès 1, E-08028 Barcelona, Spain
2
MIND-Departament of Electronics, Universitat de Barcelona (UB), c/Martí i Franquès 1, E-08028 Barcelona, Spain
3
Institut für Materialchemie, Technical University Vienna (TUW), A-1040 Vienna, Austria
4
Institut de Microelectrònica de Barcelona (IMB-CNM, CSIC), Campus UAB, E-08193 Bellaterra, Spain
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 8 August 2017
(This article belongs to the Proceedings of Eurosensors 2017)
Download PDF [578 KB, uploaded 4 September 2017]

Abstract

Gallium oxide nanowires (NWs) were synthetized using a vapor-liquid-solid route via carbothermal reduction. These NWs were characterized using XRD, SEM and TEM as well as photoluminescence spectroscopy, confirming their crystalline nature. Gas sensors, based on individual NWs, deposited on suspended microhotplates, were tested towards several gases of interest at different temperatures. The sensing towards relative humidity provided the best results, with responses up to 20% at room temperature (~25 °C).
Keywords: single nanowire; gallium oxide; humidity sensor; low temperature single nanowire; gallium oxide; humidity sensor; low temperature
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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MDPI and ACS Style

Domènech-Gil, G.; Riera, I.P.; López-Aymerich, E.; Pellegrino, P.; Barth, S.; Gràcia, I.; Cané, C.; Prades, J.D.; Moreno-Sereno, M.; Romano-Rodriguez, A. Individual Gallium Oxide Nanowires for Humidity Sensing at Low Temperature. Proceedings 2017, 1, 468.

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