Functionalization of 6 H - Si C surfaces with organosilanes

We demonstrate the successful covalent functionalization of n -type 6 H - Si C with organosilanes. In particular, wet-chemically processed self-assembled layers of octadecyltrimethoxysilane and amino-propyldiethoxymethylsilane were investigated. The structural and chemical properties of these layers...

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Bibliographic Details
Published in:Applied physics letters 2008-04, Vol.92 (15), p.153301-153301-3
Main Authors: Schoell, S. J., Hoeb, M., Sharp, I. D., Steins, W., Eickhoff, M., Stutzmann, M., Brandt, M. S.
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Summary:We demonstrate the successful covalent functionalization of n -type 6 H - Si C with organosilanes. In particular, wet-chemically processed self-assembled layers of octadecyltrimethoxysilane and amino-propyldiethoxymethylsilane were investigated. The structural and chemical properties of these layers were studied by contact angle measurements, atomic force microscopy, thermal desorption, and x-ray photoelectron spectroscopy. The organic layers are smooth and wetting angles up to 100° are observed. Desorption temperatures in the range of 830 K prove the covalent bonding of the organic molecules to the SiC surface. By utilizing self-assembled layers with functional end groups, attachment of complex molecules was demonstrated by immobilization of proteins on micropatterned organic layers.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2908871