1. Institut für Technische und Makromolekulare Chemie
2. RWTH Aachen University
3. 52074 Aachen
4. Germany
5. JARA-ENERGY
6. Department of Materials Science & Engineering
7. Ghent University
8. Belgium
9. Research Institute of Industrial Science & Technology (RIST)
10. Pohang 790-330
11. Korea