1. Institute
of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
2. Center for Applied Nanotechnology, Grindelallee 117, 20146 Hamburg, Germany
3. Institute
of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Platz
6, 20146 Hamburg, Germany
4. The
Hamburg Center for Ultrafast Imaging, University of Hamburg, Luruper Chaussee
149, 22761 Hamburg, Germany