Fabrication of TiO2 Nanotube on ITO Glass by Electrochemistry Method

In this research, TiO₂ nanotube was fabricated on glasses by electrochemistry method, and investigated by transmittance, scanning electron microscopy (SEM), and ultraviolet-visible absorption spectra analyses. Transmittance curves reveal that the transmittance of annealed TiO₂ nanotube is about 80%~90%, and is obviously higher than non-annealed TiO₂ nanotube. SEM images reveal that the diameter and height of TiO₂ nanotube are 70 nm and 230 nm, respectively. The absorption band of annealed TiO₂ nanotube is at 330~370 nm. This annealed TiO₂ nanotube can be applied on the electrode of dye-sensitized solar cell to increase the contact area between TiO₂ and dye, resulting in the enhancement of efficiency for dye-sensitized solar cell.