Formation of Titania Nanotubes and Application for Dye-Sensitized Solar Cell

The dye-sensitized solar cell provides a technically and economically credible alternative concept to present day p-n junction photovoltaic devices. The semiconductor assumes both the task of the light absorption and charge carrier transport, the two functions are separated here. To increase the efficiency of the charge transport through the mesoporous oxide film, the semiconductors was synthesized the structure with higher degree of order than the random fractal-like assembly of nanoparticles. A desirable morphology of the films would have the mesoporous channels or nanorods aligned in the parallel to each other and vertically with respect to the TCO glass current collect. Nanotube-shaped TiO₂powder was synthesized by a digestion of the crystalline powder obtained from the heat treatment of the titanium hydroxide precipitates. The influence of the digestion temperature and time on the formation of the TiO₂nanotube was investigated. Highly efficient dye sensitized solar cell were produced using single crystalline TiO₂nanotubes as a thin-film semiconductor.