Kiel 2011 – scientific programme
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P: Fachverband Plasmaphysik
P 17: Poster: Plasmatechnologie
P 17.13: Poster
Wednesday, March 30, 2011, 16:30–18:30, Foyer
Hybrid PVD/PECVD fabrication and structural investigations of Cobalt-amorphous SiCNH nanocomposites — •Karthika Lakshmi Kolipaka1, Volker Brüser1, Antje Quade1, Harm Wulff2, and Franz Faupel3 — 1Leibniz Institute for Plasma Science and Technology, INP Greifswald e.V., Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany — 2Ernst Moritz Arndt University Greifswald, Institute for Biochemistry, Felix-Hausdorff-Str. 4, 17489 Greifswald, Germany — 3University of Kiel, Institute for Materials Science, Multicomponent Materials, Kaiserstr.2, 24143 Kiel, Germany
Cobalt-polymer nanocomposites have attracted a great deal of interest in the recent years because of their use in catalysis, optical, and magnetic applications. Cobalt-amorphous hydrogenated silicon carbon nitride (Co - a: SiCNH) nanocomposites are prepared by using RF magnetron sputtering of cobalt and simultaneous plasma polymerization of hexamethyldisilazane (HMDSN). X-ray Diffraction (XRD) analysis indicates the presence of metallic cobalt particles of average size 2.2 nm. X-ray photoelectron spectroscopy(XPS) and Fourier transform infrared spectroscopy (ATR-FTIR) studies reveal the presence of SiCNH bindings. HRTEM studies show homogeneously distributed cobalt nanoparticles of size 2 nm embedded in the polymer matrix. In films with higher metal content a continuous distribution of metal particles is seen. Topographic and phase contrast images are obtained using atomic force microscopy (AFM) in tapping mode. Various magnetic domain configurations are observed in magnetic force microscopy (MFM) images obtained using lift mode AFM technique.