Dresden 2006 – wissenschaftliches Programm

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MM: Metall- und Materialphysik

MM 29: Poster Session (SYNW)

MM 29.4: Poster

Donnerstag, 30. März 2006, 10:00–11:00, P4

Fabrication of metal nanowires and their hydrogen sorption — •Sönke Schmidt and Astrid Pundt — Institut für Materialphysik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen

Nanowire arrays of different metals (Pd, Fe, Nb, V) were produced by small angle sputtering on facetted sapphire, using the self shadowing effect of the facets. Minimum wires widths of about 50 nm were achieved. The wire length is given by the length of the facet. However, in case of Pd, Nb and Fe, island growth was found on the facets backside. The behaviour of Niobium wires during the exposure to hydrogen was investigated with AFM, using Contact mode, Lateral Force Microsopy (LFM) and Force Spectroscopy (FS), as well as Non-Contact mode. Resistivity measurements on Palladium wires arrays during hydrogen loading were carried out. The influence of hydride formation on the resistivity of wires will be discussed.