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Proceedings Paper

Cleaning of nanopillar templates for nanoparticle collection using PDMS
Author(s): S. Merzsch; H. S. Wasisto; A. Waag; I. Kirsch; E. Uhde; T. Salthammer; E. Peiner
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Paper Abstract

Nanoparticles are easily attracted by surfaces. This sticking behavior makes it difficult to clean contaminated samples. Some complex approaches have already shown efficiencies in the range of 90%. However, a simple and cost efficient method was still missing. A commonly used silicone for soft lithography, PDMS, is able to mold a given surface. This property was used to cover surface-bonded particles from all other sides. After hardening the PDMS, particles are still embedded. A separation of silicone and sample disjoins also the particles from the surface. After this procedure, samples are clean again. This method was first tested with carbon particles on Si surfaces and Si pillar samples with aspect ratios up to 10. Experiments were done using 2 inch wafers, which, however, is not a size limitation for this method.

Paper Details

Date Published: 3 May 2011
PDF: 8 pages
Proc. SPIE 8068, Bioelectronics, Biomedical, and Bioinspired Systems V; and Nanotechnology V, 806819 (3 May 2011); doi: 10.1117/12.886352
Show Author Affiliations
S. Merzsch, Technische Univ. Braunschweig (Germany)
H. S. Wasisto, Technische Univ. Braunschweig (Germany)
A. Waag, Technische Univ. Braunschweig (Germany)
I. Kirsch, Fraunhofer-Institute for Wood Research, Wilhelm-Klauditz-Institut (Germany)
E. Uhde, Fraunhofer-Institute for Wood Research, Wilhelm-Klauditz-Institut (Germany)
T. Salthammer, Fraunhofer-Institute for Wood Research, Wilhelm-Klauditz-Institut (Germany)
E. Peiner, Technische Univ. Braunschweig (Germany)


Published in SPIE Proceedings Vol. 8068:
Bioelectronics, Biomedical, and Bioinspired Systems V; and Nanotechnology V
Ángel B. Rodríguez-Vázquez; Rainer Adelung, Editor(s)

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