1. Department
of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Göteborg, Sweden
2. Institute of Polymer Optoelectronic Materials and Devices, State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China
3. Biomolecular and Organic Electronics, IFM, Linköping University, SE−58183 Linköping, Sweden
4. Laboratory of Organic Electronics, Department
of Science and Technology, Linköping University, SE−60174 Norrköping, Sweden
5. State Key Laboratory
for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
6. Division
of Theoretical Chemistry, Lund University, SE−221 00 Lund, Sweden