Preparation of grass-like TiO2 nanostructure thin films: Effect of growth temperature

► Grass-like TiO2 nanostructure films were prepared using liquid phase deposition method. ► The growth temperature used in synthesizing the TiO2 nanoparticles samples were 25 (room temperature), 50, 60 and 90 °C. ► The samples were in anatase form eventhough the morphology has changed. ► The optical absorption sensitivity and energy gap increase with the growth temperature.