1. Chair of Electronic Devices, Faculty of Electrical Engineering and Information Technology, RWTH Aachen University, Otto-Blumenthal-Str. 2, 52074 Aachen, Germany
2. Institute of Physics, EIT 2, Faculty of Electrical Engineering and Information Technology, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
3. Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Materials and BioEngineering Research (AMBER) and School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
4. Department of Mechanical Engineering, University of Siegen, 57076 Siegen, Germany
5. Wilhelm-Ostwald-Institute für Physikalische und Theoretische Chemie, Universität Leipzig, Linné Str. 2, 04103 Leipzig, Germany
6. Helmholtz Center Dresden-Rossendorf, Institute of Resource Ecology, 01328 Dresden, Germany
7. Infineon Technologies AG, Wernerwerkstraße 2, 93049 Regensburg, Germany
8. Theoretical Chemistry, TU Dresden, 01062 Dresden, Germany
9. AMO GmbH, Advanced Microelectronic Center Aachen (AMICA), Otto-Blumenthal-Str. 25, 52074 Aachen, Germany