1. Department of Chemistry and Centre for Plastic ElectronicsImperial College London London SW7 2AZ UK
2. Department of Physics and Centre for Plastics ElectronicsImperial College London UK
3. Molecular Materials and Nanosystems and Institute for Complex Molecular SystemsEindhoven University of Technology 5600 MB Eindhoven The Netherlands
4. Department of ChemistryImperial College London UK
5. AWE Aldermaston, Reading RG7 4PR UK
6. Department of Engineering ScienceUniversity of Oxford Oxford OX1 3PJ UK