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MM: Fachverband Metall- und Materialphysik
MM 26: Poster Session
MM 26.54: Poster
Tuesday, March 23, 2010, 14:45–16:30, Poster C
Alternative contacting concept for ZnO nanostructures with regard to sensing applications — •Martin Gnauck1, Ulrich Schröder1, Raphael Niepelt1, Carsten Ronning1, and Rainer Adelung2 — 1Institute for Solid State Physics, Friedrich-Schiller-University Jena — 2Institute for Materials Science - Functional Nanomaterials, Christian-Albrechts-University Kiel
Due to the direct band gap of 3.37 eV at room temperature and high surface-to-volume-ratios zinc oxide nanowires exhibit some promising properties for upcoming sensing applications. Studying the electrical and opto-electrical properties of single nanowires usually requires complex techniques like electron beam lithography or preparation via focused ion beam (FIB). Well established photolithography, however, is economically reasonable and allows fabrication of new nanostructure based devices on a much larger scale.
Here, we present a comparatively easy method for contacting one- and two-dimensional ZnO nanostructures and investigate their electrical properties with regard to possible applications as UV-light and gas detectors. Therefore, photolithography is used for pre-structuring and pre-contacting the VLS-grown nanowires and nanosails.