1. Institute of Particle Technology, University of Erlangen—Nuremberg, 91058 Erlangen, Germany
2. Institute of Organic Chemistry LS II, University of Erlangen—Nuremberg, 91054 Erlangen, Germany
3. Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials, University of Erlangen−Nuremberg, 91058 Erlangen, Germany
4. Center for Nanoanalysis and Electron Microscopy (CENEM), University of Erlangen−Nuremberg, 91058 Erlangen, Germany