The Effect of Growth Temperature on the Surface Properties of TiO₂ Nanostructures Grown on TiO₂ Templates

Abstract

The synthesis of TiO₂ nanostructures with uniform shape and the proper orientation is a vital task in ensuring their ability to function properly in their applications [1]. Therefore, much effort has been dedicated to discovering an effective method to synthesize TiO₂ nanostructures. In this preliminary work, TiO₂ nanostructures were successfully synthesized by a simple precipitation technique. This solution-based technique offers many advantages such as composition modifications, low cost, relatively low temperatures and implementation into large-scale production. A variety of TiO₂ nanostructures can be obtained by changing the growth temperature and time [2]. In this study, TiO₂ nanostructures were grown on a TiO₂ template at various growth temperatures ranging from 60℃ to 140℃. The surface topography and morphology of TiO₂ films were investigated by atomic force microscopy (AFM). The phase of the TiO₂ nanostructures and their surface roughness properties were evaluated by Raman spectroscopy and a surface profiler (SP), respectively.