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Structural and gas-sensing properties of CuO-CuxFe3−xO4 nanostructured thin films

Abstract : Nanocrystalline CuO-CuxFe3−xO4 thin films were developed using a radio-frequency sputtering method followed by a thermal oxidation process. Thin films were deposited applying two very different conditions by varying the argon pressure and the target-to-substrate distance. Structural, microstructural and gas-sensing characteristics were performed using grazing incidence X-ray diffraction (GXRD), Raman spectroscopy, atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and electrical measurements. Their sensing properties were examined using hydrogen gas in dry synthetic air. The shortest response and recovery times were observed between 280 and 300 °C independently of the deposition conditions.
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Submitted on : Friday, July 13, 2012 - 9:54:38 AM
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Audrey Chapelle, Mohd H. Yaacob, Isabelle Pasquet, Lionel Presmanes, Antoine Barnabé, et al.. Structural and gas-sensing properties of CuO-CuxFe3−xO4 nanostructured thin films. Sensors and Actuators B: Chemical, Elsevier, 2010, vol. 153, pp. 117-124. ⟨hal-00717490⟩

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