1. Inorganic Materials Chemistry, Ruhr-University Bochum, 44780 Bochum, Germany
2. Institute of Electronic Materials
and Devices, Leibniz University of Hannover, 30167 Hannover, Germany
3. Center of Advanced European Studies and Research (Caesar), 53175 Bonn,
Germany
4. Institute of Electronic
Materials
and Nanoelectronics, Ruhr-University Bochum, 44780 Bochum, Germany
5. Dynamitron Tandem Laboratory
(DTL) of RUBION, Ruhr-University Bochum, 44780 Bochum, Germany