title: Improved photoelectrochemical performance of Ti-doped alpha-Fe2O3 thin films by surface modification with fluoride.
abstract: CoF(3) aqueous solution was used to modify the surface of Ti-doped iron oxide thin film photoanodes to negatively shift the flat-band potential and allow photogenerated electrons to directly reduce water to hydrogen without an external bias; the zero bias performance was further improved by the use of glucose (a biomass analog) to bypass the relatively slow oxygen evolution reaction to provide a source of electrons to rapidly consume photogenerated holes.
authors.affiliation: Department of Chemical Engineering, University of California at Santa Barbara, Santa Barbara, CA, 93106-5080, USA.
authors.forename: Yong-Sheng
authors.initials: YS
authors.lastname: Hu
authors.forename: Alan
authors.initials: A
authors.lastname: Kleiman-Shwarsctein
authors.forename: Galen D
authors.initials: GD
authors.lastname: Stucky
authors.forename: Eric W
authors.initials: EW
authors.lastname: McFarland