1. Institute for Integrative Nanosciences Institute for Solid State and Materials Research Dresden (IFW Dresden) 01069 Dresden Germany
2. The H. Niewodniczański Institute of Nuclear Physics Polish Academy of Sciences 31–342 Krakow Poland
3. Elektrotechnisches Institut Technische Universität Dresden 01069 Dresden Germany
4. College of Physics Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University 215006 Suzhou China
5. Department of Soft Matter Physics Johannes Kepler University Altenbergerstrasse 69 4040 Linz Austria
6. Material Systems for Nanoelectronics Chemnitz University of Technology 09107 Chemnitz Germany
7. Center for Advancing Electronics Dresden Dresden University of Technology 01062 Dresden Germany