1. Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Universitaetsstrasse 7, Essen 45141, Germany
2. Department of Applied Sciences and Mechatronics, Munich University of Applied Sciences HM, Lothstrasse 34, Munich 80335, Germany
3. Institute of Photonic Technologies (LPT), Friedrich-Alexander Universität Erlangen-Nürnberg, Konrad-Zuse-Strasse 3/5, Erlangen 91052, Germany
4. Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich-Alexander-Universität Erlangen-Nürnberg, Paul-Gordan-Strasse 6, Erlangen 91052, Germany