title: Radial electron collection in dye-sensitized solar cells.
abstract: We introduce a new photoelectrode architecture consisting of concentric conducting and semiconducting nanotubes for use in dye-sensitized solar cells (DSSCs). Atomic layer deposition is employed to grow indium tin oxide (ITO) within a porous template and subsequently coat the high area photoelectrode with amorphous TiO 2. Compared with control devices lacking a current collector within the pores, the new photoelectrode geometry exhibits dramatically higher current densities, an effect attributed to the radial collection of electrons.
authors.affiliation: Department of Chemistry and Argonne-Northwestern Solar Energy Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA.
authors.forename: Alex B F
authors.initials: AB
authors.lastname: Martinson
authors.forename: Jeffrey W
authors.initials: JW
authors.lastname: Elam
authors.forename: Jun
authors.initials: J
authors.lastname: Liu
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Pellin
authors.forename: Tobin J
authors.initials: TJ
authors.lastname: Marks
authors.forename: Joseph T
authors.initials: JT
authors.lastname: Hupp