1. Laboratory for Transport at Nanoscale Interfaces, Empa─Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
2. Department of Chemistry and Applied Biosciences, ETH─Swiss Federal Institute of Technology Zurich, CH-8093 Zurich, Switzerland
3. Laboratory for Thin Films and Photovoltaics, Empa─Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Dübendorf, Switzerland
4. Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH─Swiss Federal Institute of Technology Zurich, CH-8092 Zurich, Switzerland
5. Department of Physics and Swiss Nanoscience Institute, University of Basel, CH-4056 Basel, Switzerland