1 Institut für Physik, Technische Universität Chemnitz, 09126, Chemnitz, Germany.
2 Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Germany.
3 Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (HI ERN), Immerwahrstrasse 2, 91058, Erlangen, Germany.
4 Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, P. R. China.
5 Physikalisches Institut, Dynamik und Strukturbildung - Herzig Group, Universität Bayreuth, Universitätsstr. 30, 95447, Bayreuth, Germany.
6 Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
7 Department of Chemistry and Biochemistry, University of Bern, 3012, Bern, Switzerland.
8 Integrated Center for Applied Photophysics and Photonic Materials, Technische Universität Dresden, 01062, Dresden, Germany.
9 Center for Advancing Electronics Dresden, Technische Universität Dresden, 01062, Dresden, Germany.
10 State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, 510640, Guangzhou, China.
11 Department of Engineering, Durham University, Lower Mount Joy, South Road, Durham, DH1 3LE, UK.
12 Institut für Physik, Technische Universität Chemnitz, 09126, Chemnitz, Germany. deibel@physik.tu-chemnitz.de.