1. Department of Materials Eidgenössische Technische Hochschule (ETH) Zürich Vladimir‐Prelog‐Weg 5 Zürich 8093 Switzerland
2. Department of Macromolecular Chemistry I University of Bayreuth Universitätsstr. 30 Bayreuth 95447 Germany
3. Light Technology Institute Karlsruhe Institute of Technology Engesserstr. 13 Karlsruhe 76131 Germany
4. InnovationLab Speyererstr. 4 Heidelberg 69115 Germany