In this work, we made network TiO2 nanowires of high surface area, using the seeded growth process. An overall solar photoconversion efficiency of 8.51% has been achieved from the film including TiO2 network nanowires, which is much higher than 6.94% of TiO2 nanoparticulate film with same thickness (6.2 mu m). (C) 2014 The Electrochemical Society. All rights reserved.