Berlin 2005 – wissenschaftliches Programm

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O: Oberflächenphysik

O 19: Nanostrukturen II

O 19.8: Vortrag

Samstag, 5. März 2005, 12:30–12:45, TU EB420

Multicomponent nanowires formed by nano shadow masks based on delamination — •Rainer Adelung, Mady Elbahri, Shiva Kumar Rudra, Abhijit Biswas, and Rainer Kunz — Lehrstuhl für Materialverbunde, Technische Fakultät der Universität Kiel, Kaiserstrasse 2, 24143 Kiel, Germany

Simple ways to realize aligned nanostructures are still of interest, as conventional sub 100nm photolithography is not handy with respect to different materials or everyday lab use. Recently, we could show that directed fracture in thin films can be used to fabricate various nanowire structures [1]. But limits of the approach are for example the fabrication nanowires of two different materials in a distance of a few nanometer. Many deficiency like this can be overcome, by being more destructive and going beyond thin film fracture. Adding delamination at the crack sides produces nanoscale shadow masks that create a workspace, allowing to deposit material for multicomponent nanowires, or removing material to trench nanochannels. Various examples of nanostructures will be shown and their application for e.g. sensors or as templates for biological samples will be discussed.

[1] R. Adelung et al., Nature Materials 3, 375, (2004)