1. Laboratory for Multifunctional Materials, Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland
2. Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
3. University of Tuebingen, Institute of Physical and Theoretical Chemistry, Auf der Morgenstelle 15, 72076 Tuebingen, Germany