1. Energy Materials Laboratory, Chemistry: School of Natural and Environmental Science, Newcastle University, Newcastle Upon Tyne NE1 7RU, United Kingdom
2. Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
3. Leibniz-Institute of Photonic Technology (IPHT) Jena e.V., Department Functional Interfaces, Albert-Einstein-Straße 9, 07745 Jena, Germany
4. Institute of Physical Chemistry and Center for Energy and Environmental Chemistry Jena (CEEC Jena), Friedrich-Schiller-University Jena, Helmholtzweg 4, 07743 Jena, Germany