1. King Abdullah University of Science and Technology, KAUST Solar Center, Physical Sciences and Engineering Division, Thuwal, Saudi Arabia
2. Friedrich Schiller University Jena, Laboratory of Organic and Macromolecular Chemistry, Jena, Germany
3. Ilmenau University of Technology, Institute of Materials Engineering, Ilmenau, Germany
4. Technische Universität Ilmenau, Production Technology Group, Ilmenau, Germany