1. Light Technology Institute (LTI)
and DFG Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12,
76131 Karlsruhe, Germany
2. Institute of Nanotechnology
(INT) and Karlsruhe Nano Micro Facilty (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz
Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
3. Institute of Inorganic Chemistry,
Karlsruhe Institute of Technology, Engesserstraße 15, 76131 Karlsruhe,
Germany and DFG Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology, Kaiserstraße
12, 76131 Karlsruhe, Germany
4. Department of Chemistry, University of Toronto, 80 St. George Street, Toronto,
ON M5S 3H6, Canada, and DFG Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology, Kaiserstraße
12, 76131 Karlsruhe, Germany