Review on nanostructured photoelectrodes for dye-sensitized solar cells

Photoelectrodes are one of the major components of the dye sensitized solar cells that their role is electrons transport. The nanostructured photoelectrodes can be classified into: 1) nanoparticles with high surface area, 2) 1D nanostructures such as nanotubes and nanowires, 3) 3D photoelectrodes that combine large and small nano particles, 4) 3D photoelectrode and 5) hybrid TiO2/graphene nanostructures. Two important properties of photoelectrodesare high surface area and maximum loading dyes that have direct effect on performance of dye-sensitized solar cells. This review briefly discuses phoelectrodes for dye-sensitized solar cell.