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Functionalization of surfaces with organosilanes
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Figures

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FIG. 1.

(a) C core level XPS spectra of HF-treated and ODTMS-functionalized (0001) SiC ( x-ray source operated at and ). The component at indicates the presence of hydrocarbons. (b) TDSs of ODTMS-functionalized SiC. The shown partial pressure of the fragment with a weight of corresponds to .

Image of FIG. 2.

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FIG. 2.

(a) and (b) show AFM micrographs of ODTMS-functionalized (0001) and SiC, respectively.

Image of FIG. 3.

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FIG. 3.

(a) curves of ODTMS-functionalized SiC and (b) SEM micrograph of regions with different electrical conductivities. Dark areas indicate -plasma treated regions. (c) Schematic view of the chemical processes during the wet-chemical functionalization with proteins and (d) fluorescence micrograph of immobilized labeled proteins on UV-micropatterned APDEMS layer. Dark areas indicate deactivated organic layers.

Tables

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Table I.

Summary of wetting behavior investigated by static water contact angle measurements and rms surface roughness analysis by atomic force microscopy (AFM) (evaluated area is ). All contact angles are given with an accuracy of .

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/content/aip/journal/apl/92/15/10.1063/1.2908871
2008-04-14
2014-04-21

Abstract

We demonstrate the successful covalent functionalization of -type 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 prove the covalent bonding of the organic molecules to the SiCsurface. By utilizing self-assembled layers with functional end groups, attachment of complex molecules was demonstrated by immobilization of proteins on micropatterned organic layers.

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Scitation: Functionalization of 6H-SiC surfaces with organosilanes
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/15/10.1063/1.2908871
10.1063/1.2908871
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