STUDIES ON THE TiO₂ THIN FILMS DOPED WITH Fe³⁺

The Fe³⁺-TiO₂ thin films obtained through sol-gel method were characterized by x-ray diffraction, AFM and Raman spectroscopy. It was found that TiO₂ films consisted of nanometer particles. The experimental results shows that the nanometer TiO₂ thin films doped with Fe³⁺ were greatly improved in the activity aspect. This may be ascribed to change their structure and electrical properties after doping with Fe³⁺. The results were discussed theoretically in detail.