1. School of Science, Constructor University, Campus Ring 1, 28759 Bremen, Germany
2. Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
3. Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
4. Bremen Center for Computational Materials Science, University of Bremen, 28359 Bremen, Germany
5. Electron Microscopy for Materials Research, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
6. Fakultät Physik/DELTA, Technische Universität Dortmund, 44221 Dortmund, Germany
7. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
8. Guangdong Technion Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong Province 515603, P. R. China