Dresden 2011 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 38: [DS] Progress in Micro- and Nanopatterning: Techniques and Applications II (Focused Session, jointly with O - Organisers: Graaf, Hartmann)

O 38.4: Vortrag

Mittwoch, 16. März 2011, 11:45–12:00, GER 38

Self-arranged anodic nanostructured thin films on titanium — •Robin Kirchgeorg, Steffen Berger, and Patrik Schmuki — Institute for Surface Science and Corrosion (LKO), Department Material Science and Engineering, Fridrich-Alexander-Universität Erlangen-Nürnberg, Martensstraße 7, 91052 Erlangen, Germany

Self-organized anodic oxide nanostructures, in particular highly ordered titania nanotubes offer several interesting functional properties that have been explored in a wide field of applications, such as wettability tuning of surfaces, bio medicine, electrochromic devices, and solar energy conversion. The nanotubular oxides can be tailored, for example with respect to layer thickness, tube diameter, and other morphological, electrical or chemical properties. For many applications these patterned surfaces are at prime importance. The self-organization and growth mechanism of TiO₂ nanotubes during anodization were investigated on photolithographically masked titanium thin films. The influence of potential, time and anodization conditions on the growth mechanism of TiO₂ nanotubes are evaluated. The presentation will provide an overview on the mechanisms of growth and self-ordering of TiO₂ nanotubes.