Dye-sensitized solar cells were fabricated using F-doped TiO 2 electrodes. The X-ray diffraction patterns of the F doped TiO 2 is almost the same as that of pure TiO 2 , showing that F has little influence on the formation of anatase titania. The influence of dopant F on band energetics and photoelectrochemical properties of nanostructured TiO 2 electrodes was investigated. Compared with pure TiO 2 electrodes, the E fb of F-doped TiO 2 electrodes shifted little in electrolytes containing LiClO 4 . The total trap densities were remarkably decreased as TiO 2 electrodes were doped with F. Finally the F-doped TiO 2 electrodes were sensitized with Ru[L 2 (NCS) 2 ], L=2,2′-bipyridine-4,4′-dicarboxylic acid and their photoelectrochemical properties were studied. Experiment results showed that the content of F plays an important role in the photoelectrochemical properties. The highest conversion efficiency of 8.07% was obtained with F-doped TiO 2 electrodes containing F0.05 (molar ratio) under irradiation of 100mWcm −2 white light, about 11.3% higher than that of pure TiO 2 electrodes.