Abstract
High quality self-ordered TiO2 nanotubes (TNTs) were grown on a conductive fluorine-doped tin oxide (FTO) glass by anodization of titanium thin film. The result showed that high density Ti film with good adhesion was obtained by direct current (DC) magenetron sputtering at 200 ˚C. The dependence of morphology of TiO2 nanotube on anodization time was investigated by scanning electron microscope (SEM). The TiO2 nanotubes were annealed at 500 ˚C for 180 min, which led to the transformation of the crystal structure from amorphous to anatase. The influences of anodization time on the crystallization of nanotubes also were discussed. The proposed low cost method for fabricating TiO2 nanotubes provides an approach to enhance the efficiency of dye-sensitized solar cells (DSSC).
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