1. Biomolecular and Organic Electronics, Department of Physics, Chemistry and Biology, Linköping University, Linköping SE-581 83, Sweden
2. College of Materials and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing 314001, China
3. Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg SE-412 96, Sweden
4. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
5. Department of Physics, The Chinese University of Hong Kong, Shatin 999077, Hong Kong, China
6. Department of Engineering and Chemical Sciences, Karlstad University, Karlstad SE-651 88, Sweden
7. China-Australia Institute for Advanced Materials and Manufacturing, Jiaxing University, Jiaxing 314001, China
8. Department of Engineering and Physics, Karlstad University, Karlstad SE-651 88, Sweden