Dresden 2011 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 85: Poster Session II

HL 85.41: Poster

Donnerstag, 17. März 2011, 18:00–21:00, P4

Electrical transport properties of TiO₂ single nanotube — •Tuhin Subhra Maity¹, José Quiquia¹, Winfried Böhlmann¹, Pablo Esquinazi¹, Tobias Ruff², and Patrik Schmuki² — ¹Division of Superconductivity and Magnetism, Institute for Experimental Physics II,University of Leipzig — ²Department of Materials Science and Engineering, University of Erlangen Nüremberg

In the present work we investigate the electrical conductivity of single TiO₂ nanotubes. TiO₂ nanotubes were synthesized by anodization of Ti in fluoride containing electrolytes. For the characterization of the sample morphology scanning electron microscope and EDX-detector was used. The structural property was determined by XRD. Electron lithography method was used to make the gold contact on the nanotubes. The electrical properties of single nanotubes were measured at different temperatures and magnetic fields. Resistivity values at room temperature were found of the order of ∼10⁻² Ωcm. Furthermore, we explored the effects of atmospheric conditions and light irradiation on conductivity of single TiO₂ nanotubes.