1. Department of Chemistry and Centre for Plastic ElectronicsImperial College London London W12 0BZ UK
2. Department of Materials Science and EngineeringMonash University Victoria 3800 Australia
3. Department of Physics and Centre for Plastic ElectronicsImperial College London London SW7 2AZ UK
4. Institute of Molecular PlusTianjin Key Laboratory of Molecular Optoelectronic ScienceTianjin University Tianjin 300072 P. R. China
5. King Abdullah University of Science and Technology (KAUST)KAUST Solar Centre Thuwal 23955‐6900 Saudi Arabia
6. SPECIFIC IKCCollege of EngineeringSwansea University Swansea SA2 7AX UK