The TiO2 thin films were successfully coated by spin coating technique using Ti(OH)2 as a precursor. The precursor was prepared by sol-gel synthesis. The TiO2 thin films were dye-sensitized with Lawsone dye extracted from Lawsonia Inermis. The as-synthesized TiO2 thin films were subjected to X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), UV-Vis spectrophotometer, Scanning Electron Microscope (SEM), Field dependent dark and photo conductivity and temperature dependent conductivity studies. From XRD, it was confirmed that the compound synthesized is TiO2. Fourier Transform Infrared Spectroscopy (FTIR) confirms that a TiO2 phase has been formed. The field dependent conductivity showed an insignificant rise in photocurrent for TiO2 which was in conformity with its wide band gap nature. The temperature dependent conductivity studies confirmed the semiconducting nature of the film. The surface properties of the thin films were analyzed using Scanning Electron Microscopy. The Lawsone dye-sensitized TiO2 thin film showed a significant rise of photocurrent over the dark current.
