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CO2 sensing properties of semiconducting copper oxide and spinel ferrite nanocomposite thin film

Chapelle, Audrey and Oudrhiri-Hassani, Fahd and Presmanes, Lionel and Barnabé, Antoine and Tailhades, Philippe CO2 sensing properties of semiconducting copper oxide and spinel ferrite nanocomposite thin film. (2010) Applied Surface Science, vol. 256 (n° 14). pp. 4715-4519. ISSN 0169-4332

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Official URL: http://dx.doi.org/10.1016/j.apsusc.2010.02.079

Abstract

A new active layer for CO2 sensing based on semiconducting CuO–CuxFe3−xO4 (with 0 ≤ x ≤ 1) nanocomposite was prepared by radiofrequency sputtering from a delafossite CuFeO2 target using a specific in situ reduction method followed by post annealing treatment in air. The tenorite–spinel ferrite nanocomposite layer was deposited on a simplified test device and the response in a carbon dioxide atmosphere was measured by varying the concentration up to 5000 ppm, at different working temperatures (130–475 °C) and frequencies (0.5–250 kHz). The results showed a high response of 50% (Rair/RCO2=1.9) at 250 °C and 700 Hz for a CO2 concentration of 5000 ppm.

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 Applied Surface Science website : http://www.sciencedirect.com/science/journal/01694332
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By:Leila Abdelouhab

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