1. Institute of Particle Technology (LFG), Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Cauerstraße 4, 91058 Erlangen, Germany
2. Interdisciplinary Center for Functional Particle Systems, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen 91058, Germany
3. Chair ‘Chemistry of Thin Film Materials’ (CTFM), Friedrich-Alexander University Erlangen-Nürnberg (FAU), IZNF, Cauerstraße 3, 91058 Erlangen, Germany