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Proceedings 2017, 1(4), 423; doi:10.3390/proceedings1040423

Ozone Sensors Working at Room Temperature Using Zinc Oxide Nanocrystals Annealed at Low Temperature

1
Aix Marseille Univ, Université de Toulon, CNRS, IM2NP, Marseille 13397, France
2
Aix Marseille Univ, CNRS, CINAM, Marseille 13288, France
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 11 August 2017
Download PDF [563 KB, uploaded 6 September 2017]

Abstract

We focus on ozone (O3) detection at ambient temperature by Zinc Oxide (ZnO) nanoparticles (NPs) deposited on Si/SiO2 by spin coating from colloidal solutions as sensitive layers for air quality monitoring. We establish that at room temperature using continuous Ultra-Violet (UV) light irradiation enhances the sensing responses. Three annealing temperatures of ZnO films were performed to compare the sensing properties. These sensors present repeatable responses towards O3 with fast responses for concentrations as low as 35 ppb with processes compatible with most of flexible substrates.
Keywords: ozone gas; room-temperature; UV-photoactivated; ZnO nanoparticles; environment ozone gas; room-temperature; UV-photoactivated; ZnO nanoparticles; environment
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

Bernardini, S.; Benchekroun, M.H.; Fiorido, T.; Aguir, K.; Bendahan, M.; Dkhil, S.B.; Gaceur, M.; Ackermann, J.; Margeat, O.; Videlot-Ackermann, C. Ozone Sensors Working at Room Temperature Using Zinc Oxide Nanocrystals Annealed at Low Temperature. Proceedings 2017, 1, 423.

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