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Vanadium Oxide Nanostructures: Growth, Characterization and Applications

Published online by Cambridge University Press:  01 February 2011

Sanjay Mathur  and
Thomas Ruegamer
Sanjay Mathur
Affiliation:
[email protected], Leibniz-Institute of New Materials, Nanokrystalline Materials and Thin Film Systems, Im Stadtwald, Gebaeude D2 2, Saarbruecken, Saarland, 66041, Germany, +49 681 9300 279
Thomas Ruegamer
Affiliation:
[email protected], Leibniz-Institute of New Materials, Nanocrystalline Materials and Thin Film Systems, Germany
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Abstract

Vanadium oxide nanostructures (V2O5 and VO2) were obtained by chemical vapor deposition of the alkoxide precursor [VO(OPri)3]. The nanomaterials were studied with respect to their morphological features (HR-SEM) and phase structure (XRD) followed by characterization as resisitive-type gas sensors. Given the high surface area, vanadium oxide (VOx) nanostructures show significant sensor response via resistance change upon reaction induced by carbon monoxide and desorption of adsorbed oxygen at 400 °C. Tin-doped VOx showed enhanced sensitivity of the films which suggests a higher number of active sensing sites or alternations in the intrinsic electrical properties of VOx by addition of SnO2 as dopant.

Keywords

chemical vapor deposition (CVD) (deposition)sensordopant
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 900: Symposium O – Nanoparticles and Nanostructures in Sensors and Catalysis , 2005 , 0900-O13-09
Copyright
Copyright © Materials Research Society 2006

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