1. Nanoelectronics, Faculty of Engineering Kiel University 24143 Kiel Germany
2. Chair of Functional Nanomaterials Faculty of Engineering Kiel University 24118 Kiel Germany
3. Central Laboratory of Solar Energy and New Energy Sources Bulgarian Academy of Sciences Sofia 1784 Bulgaria
4. Synthesis and Real Structure Group Faculty of Engineering Kiel University 24118 Kiel Germany
5. Department of Engineering Physics McMaster University Hamilton Ontario L8S 4L7 Canada
6. Kiel Nano, Surface and Interface Science KiNSIS Kiel University 24118 Kiel Germany
7. Micro‐ and Nanoelectronic Systems Electrical Engineering and Information Technology Ilmenau University of Technology 98693 Ilmenau Germany
8. Institute of Micro and Nanotechnologies MacroNano Technische Universtit at Ilmenau 98693 Ilmenau Germany