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Improved semiconducting CuO/CuFe2O4 nanostructured thin films for CO2 gas sensing

Chapelle, Audrey and El Younsi, Imane and Vitale, Stefania and Thimont, Yohann and Nelis, Thomas and Presmanes, Lionel and Barnabé, Antoine and Tailhades, Philippe Improved semiconducting CuO/CuFe2O4 nanostructured thin films for CO2 gas sensing. (2014) Sensors and Actuators B: Chemical, 204. 407-413. ISSN 0925-4005

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Official URL: http://dx.doi.org/10.1016/j.snb.2014.07.088


Promising results on the behavior of CuO/CuFe2O4sputtered thin films as a sensing material under carbondioxide atmospheres are presented in this article. More specifically, we report the effects of preparationparameters and microstructure of the sensing layer on the response to CO2. FEG-SEM images and XPSmeasurements revealed the two-stacked layers rearrangement of samples after air annealing as a keyparameter in gas sensing test. The influence of the sensing layer thickness and the influence of Ag as anadditive in the film on the response are also reported. The best response was obtained at the optimaloperating temperature of 250◦C with a thin film deposited under low argon pressure and low target-to-substrate distance, reaching 40% towards 5000 ppm of CO2.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Sciencedirect website : http://www.sciencedirect.com/science/article/pii/S0925400514009289
HAL Id:hal-01170563
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > University of Bern (SWITZERLAND)
Other partners > Università degli Studi di Catania (ITALY)
Laboratory name:
Deposited On:01 Jul 2015 15:07

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