1. Inorganic Materials Chemistry; Ruhr-University Bochum; Universitätsstraße 150 44801 Bochum Germany
2. Macromolecular and Technical Chemistry; University of Paderborn; Warburger Straße 100 33098 Paderborn Germany
3. Institute of Electrical Engineering and Plasma Technology; Ruhr-University Bochum; 44801 Bochum Germany