title: TiO2 nanotubes with ultrathin walls for enhanced water splitting.
abstract: We demonstrate, for the first time, the synthesis of titania nanotubes with ultrathin (3-5 nm) wall thickness. As revealed by the incident photon-to-current collection efficiency (IPCE) and electrochemical impedance spectroscopy measurements, the ultrathin walls, less than the charge carrier diffusion length, were essential to ensure fast and efficient charge carrier collection.
authors.affiliation: Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt. Nageh.allam@aucegypt.edu.
authors.forename: Ahmad M
authors.initials: AM
authors.lastname: Mohamed
authors.forename: Amina S
authors.initials: AS
authors.lastname: Aljaber
authors.forename: Siham Y
authors.initials: SY
authors.lastname: AlQaradawi
authors.forename: Nageh K
authors.initials: NK
authors.lastname: Allam