Atomic Force Microscopy Study of TiO2 Films Obtained by the Sol-Gel Method

Academia Romana, Bucureşti, Hunedoara, Romania
Journal of Sol-Gel Science and Technology (Impact Factor: 1.55). 12/1997; 13(1):769-773. DOI: 10.1023/A:1008673812626

ABSTRACT Atomic Force Microscopy (AFM) was used to study the influence of thermal treatments on the structural and textural properties of the sol-gel TiO2 films obtained from Ti(OC3H7i)4. X-ray diffraction (XRD), ellipsometric and porosity measurements have also been made.The TiO2 sol-gel films were homogeneous, transparent and amorphous. Heat treatments in the 400–600C range indicate that the films have a strong tendency to crystallization. The high initial homogeneity of the TiO2 films was preserved during the crystallization process. AFM shows that the thermally treated films exhibit uniform, monodispersed crystals.

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