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The electron transport and collection in the mesoporous TiO2 electrodes play a decisive role in determining the photovoltaic performance of the dye-sensitized solar cells(DSCs)due to the lack of a large potential gradient in the films.1 A novel heterostructural TiO2 nanocomposite,consisting of single-crystalline rutile TiO2 nanorod decorated Degussa P25 nanoparticles,has been fabricated through a facile acidic hydrothermal method and applied as the photoanodes for efficient DSCs.2 Devices with these hybrid anodes exhibited considerably enhanced photocurrent density(Jsc)and power conversion efficiency(PCE)in comparison with that of the Degussa P25 electrodes,which can be mainly attributed to significant light scattering effect in the long-wavelength region and enhanced charge collection efficiency resulting from the greatly decreased barrier effect of the single-crystalline nature as well as the direct electron diffusion pathway in the 1D nanostructure.