1. Chair in Polymer Chemistry, Saarland University, Campus C4.2, 66123 Saarbrücken, Germany
2. INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
3. Department of Materials Science & Engineering, Saarland University, Campus D2 2, 66123 Saarbrücken, Germany
4. Inorganic Solid State Chemistry, Saarland University, Campus C4 1, 66123 Saarbrücken, Germany
5. saarene, Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123 Saarbrücken, Germany