1. Institute for Integrative Nanosciences Leibniz IFW Dresden 01069 Dresden Germany
2. Center for Materials Architectures and Integration of Nanomembranes (MAIN) Chemnitz University of Technology 09126 Chemnitz Germany
3. Material Systems for Nanoelectronics Chemnitz University of Technology 09107 Chemnitz Germany
4. Nanophysics Faculty of Physics TU Dresden 01062 Dresden Germany
5. Beijing National Laboratory for Molecular Sciences (BNLMS) Key Laboratory of Green Printing Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China