Switching properties of vanadium doped TiO2 thin films prepared by magnetron sputtering

In the present work thin films of Ti-Me (where Me: V, Nb, Ta) were deposited onto glass substrates by magnetron sputtering of mosaic target in reactive oxygen plasma. The properties of the prepared thin films were studied by X-ray diffraction (XRD), electron dispersive spectroscopy, temperature-dependent electrical and optical transmission spectroscopy measurements. The structural investigations indicate that thin films were XRD-amorphous. Reversible thermo resistance effect, recorded at 52 +/- 1 degrees C was found from electrical measurements. The prepared coatings were well transparent in the visible part of the light spectrum from ca. 350 nm. (C) 2009 Elsevier B.V. All rights reserved.