1. Center for Advancing Electronics Dresden & Faculty of Chemistry and Food Chemistry Technische Universität Dresden Mommsenstrasse 4 01062 Dresden Germany
2. Department of Fibre and Polymer Technology KTH Royal Institute of Technology Teknikringen 56 10044 Stockholm Sweden
3. Department of Chemistry University of Colorado Boulder Boulder CO 80309 USA
4. College of Physics Hebei Key Laboratory of Photophysics Research and Application Hebei Normal University Shijiazhuang 050024 China
5. Institute of Micro- and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM) Interdisciplinary Center for Nanostructured Films (IZNF) Department of Materials Science and Engineering Friedrich-Alexander-Universität Erlangen-Nürnberg Cauerstrasse 3 91058 Erlangen Germany
6. Central Facility of Materials Science Electron Microscopy Universität Ulm 89081 Ulm Germany
7. Max Planck Institute for Microstructure Physics 06120 Halle (Saale) Germany
8. Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education School of Chemistry and Chemical Engineering Shandong University Jinan 250100 China