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DPG

Regensburg 2010 – scientific programme

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DS: Fachverband Dünne Schichten

DS 29: Poster: Molecular Spintronics, Biomolecular and Functional Organic Layers, Organic Electronics and Photovoltaics, Plasmonics and Nanophotonics, Organic Thin Films, Nanoengineered Thin Films, Thin Film Characterisation,

DS 29.49: Poster

Wednesday, March 24, 2010, 15:00–17:30, Poster A

Plasma treatment of polydimethylsiloxane thin films — •Vladimir Danilov, Jürgen Meichsner, and Hans-Erich Wagner — Institute of Physics, University of Greifswald, Felix-Hausdorff-Str. 6, 17487 Greifswald, Germany

Plasma modification of polydimethylsiloxane (PDMS) thin films was studied by means of Fourier-Transform-Infrared-Reflection-Absorption-Spectroscopy. The spin-coated PDMS films (10 nm - 100 nm) were prepared on aluminium coated glass substrates, and their thickness was measured by spectroscopic ellipsometry. The direct plasma treatment is compared with the plasma radiation, only, in argon and hydrogen rf plasmas, respectively. Evolution of IR spectra was monitored, and the changes of PDMS characteristic absorption bands (absorbance, broadening, shifting) as well as the formation of new bands are discussed. In particular, the appearance of new band at 1230 cm−1 was observed, and it was identified as LO phonon band of SiOx. For analysis of the Si-O-Si asymmetrical vibration band the deconvolution of this band was performed using Gaussian peaks.

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