1. Advanced Instrumentation for Nano-Analytics (AINA), Luxembourg Institute of Science and Technology, 41 Rue du Brill, Belvaux L-4422, Luxembourg
2. Chair of Materials Physics, Institute for Materials Science, University of Stuttgart, Heisenbergstr. 3, Stuttgart 70569, Germany
3. German Aerospace Center (DLR), Institute of Engineering Thermodynamics, Pfaffenwaldring 38-40, Stuttgart 70569, Germany
4. Institute of Building Energetics, Thermal Engineering and Energy Storage (IGTE), University of Stuttgart, Pfaffenwaldring 6, Stuttgart 70569, Germany