Abstract
Comparative work of erbium doped vanadium pentoxide and titanium dioxide thin films were carried out via sol gel technique by dissolving erbium (III) nitrate pentahydrate in vanadium (V) oxoisopropoxide and titanium (IV) isopropoxide. Fourier Transform IR and thermogravimetric/differential thermal measurements were performed to find out erbium substitution. UV-Vis. spectroscopy indicated a blue shift upon Er doping in V 2 O 5 film due to the softening of V=O bond. The similar behavior was expected in TiO 2 film and the prediction shall be shown only if annealing of the film above 600°C, resulting oxygen deficiency in anatase TiO 2 while Ti deficiency in rutile TiO 2 film. Due to such impact of erbium on structure, granule size of the films, determined by AFM, increased yielding more space for intercalation of ion in host materials and monitored through cyclic voltammetry measurements.
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