1. Institute for Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
2. Organisch-Chemisches Institut and Centre for Advanced Materials, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
3. Charles Delaunay Institute, CNRS Light, Nanomaterials, Nanotechnologies (L2n, former “LNIO”), University of Technology of Troyes, 12 rue Marie Curie - CS 42060, 10004 Troyes Cedex, France
4. Center for Light-Matter Interaction, Sensors and Analytics LISA+, University of Tübingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany