Visible region response of cobalt doped TiO2 via sol gel technique

Abstract EN

TiO2 nanoparticles were prepared via sol gel technique, and then doped with cobalt ions to form TiO2 doped cobalt sol.

Thin films were prepared from this sol using dip coating method and underwent calcination at a temperature of 550 C.The films were characterized by UV–Vis spectroscopy, X-ray diffraction (XRD), and atomic force microscopy (AFM).

The UV–Vis.

Absorption spectra show a red shift, which indicates that TiO2 doped cobalt will responds to the visible region of spectrum rather than UV- region for pure TiO2