title: Single-Walled TiO2 Nanotubes: Enhanced Carrier-Transport Properties by TiCl4 Treatment.
abstract: In the present work we report significant enhancement of the photoelectrochemical properties of self- organized TiO2 nanotubes by a combined "de-coring" of classic nanotubes followed by an appropiate TiCl4 treatment. We show that, except for the expected particle decoration, a key effect of the TiCl4 treatment is that the electron transport characteristics in TiO2 nanotubes can be drastically improved, for example, we observe an enhancement of up to 70 % in electron-transport times.
authors.affiliation: Department of Materials Science Engineering, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582.
authors.forename: Imgon
authors.initials: I
authors.lastname: Hwang
authors.affiliation: Department of Materials Science Engineering, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582.
authors.forename: Seulgi
authors.initials: S
authors.lastname: So
authors.affiliation: Department of Chemistry, King Abdulaziz University, Jeddah (Saudi Arabia).
authors.forename: Mohamed
authors.initials: M
authors.lastname: Mokhtar
authors.affiliation: Department of Chemistry, King Abdulaziz University, Jeddah (Saudi Arabia).
authors.forename: Abdelmohsen
authors.initials: A
authors.lastname: Alshehri
authors.affiliation: Department of Chemistry, King Abdulaziz University, Jeddah (Saudi Arabia).
authors.forename: Shaeel A
authors.initials: SA
authors.lastname: Al-Thabaiti
authors.affiliation: Department of Materials Science Engineering, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582.
authors.forename: Anca
authors.initials: A
authors.lastname: Mazare
authors.affiliation: Department of Materials Science Engineering, University of Erlangen-Nuremberg, Martensstrasse 7, 91058 Erlangen (Germany), Fax: (+49) 9131-852-7582. schmuki@ww.uni-erlangen.de.|Department of Chemistry, King Abdulaziz University, Jeddah (Saudi Arabia). schmuki@ww.uni-erlangen.de.
authors.forename: Patrik
authors.initials: P
authors.lastname: Schmuki
keywords: TiO2 nanotubes; anodization; photoanode; photoelectric property; single-walled