1. Department
of Chemistry and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K.
2. Department
of Chemistry, University College London, London WC1H 0AJ, U.K.
3. Department
of Physics and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K.
4. Department
of Materials and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, U.K.
5. AWE, Aldermaston, Reading RG7
4PR, U.K.