Rapid Charge Transport in Dye‐Sensitized Solar Cells Made from Vertically Aligned Single‐Crystal Rutile TiO2 Nanowires

A rapid solvothermal approach was used to synthesize aligned 1D single-crystal rutile TiO(2) nanowire (NW) arrays on transparent conducting substrates as electrodes for dye-sensitized solar cells. The NW arrays showed a more than 200 times faster charge transport and a factor four lower defect state density than conventional rutile nanoparticle films.