title: Anodic formation of high aspect ratio, self-ordered Nb2O5 nanotubes.
abstract: In the present work, we demonstrate the feasibility to form an aligned Nb(2)O(5) nanotube layer by self-organizing anodization of Nb in a NH(4)F-glycerol electrolyte. In order to achieve a nanotubular rather than a nanoporous layer, careful optimization of the anodization electrolyte is required. We show that only in a narrow window of electrolyte parameters highly aligned nanotubes of 50 nm inner diameter and several micrometres in length can be formed.
authors.affiliation: Department of Materials Science, WW4-LKO, University of Erlangen-Nürnberg, Martensstr. 7, D-91058 Erlangen, Germany.
authors.forename: Wei
authors.initials: W
authors.lastname: Wei
authors.forename: Kiyoung
authors.initials: K
authors.lastname: Lee
authors.forename: Santosh
authors.initials: S
authors.lastname: Shaw
authors.forename: Patrik
authors.initials: P
authors.lastname: Schmuki