1. Spectroscopy of Soft Matter, University of Bayreuth, 95440 Bayreuth, Germany
2. Applied Functional Materials, University of Bayreuth, 95440 Bayreuth, Germany
3. Bavarian Polymer Institute, University of Bayreuth, 95440 Bayreuth, Germany
4. Bayreuther Institut für Makromolekülforschung (BIMF), 95440 Bayreuth, Germany