title: Transparent TiO2nanotube array photoelectrodes prepared via two-step anodization.
abstract: Two-step anodization of transparent TiO2nanotube arrays has been demonstrated with aid of a Nb-doped TiO2buffer layer deposited between the Ti layer and TCO substrate. Enhanced physical adhesion and electrochemical stability provided by the buffer layer has been found to be important for successful implementation of the two-step anodization process. With the proposed approach, the morphology and thickness of NT arrays could be controlled very precisely, which in turn, influenced their optical and photoelectrochemical properties.
authors.affiliation: Photo-electronic Hybrids Research Center, Korea Institute of Science and Technology (KIST), Seoul, 136-791 Korea ; Green Green School, Korea University, Seoul, 136-701 Korea.
authors.forename: Jin Young
authors.initials: JY
authors.lastname: Kim
authors.affiliation: National Renewable Energy Laboratory, Golden, Colorado 80401-3393 USA.
authors.forename: Kai
authors.initials: K
authors.lastname: Zhu
authors.affiliation: National Renewable Energy Laboratory, Golden, Colorado 80401-3393 USA.
authors.forename: Nathan R
authors.initials: NR
authors.lastname: Neale
authors.affiliation: National Renewable Energy Laboratory, Golden, Colorado 80401-3393 USA.
authors.forename: Arthur J
authors.initials: AJ
authors.lastname: Frank