1. Centre for Plastic Electronics and Department
of Physics, Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom
2. Centre for Plastic Electronics
and Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
3. Department
of Electronics, Technical University of Cartagena, Plaza del
Hospital 1, 30202 Cartagena, Spain
4. Instituto de Ciencia de Materiales de Madrid, CSIC, 28049 Madrid, Spain
5. Institut Laue-Langevin, 38042 Grenoble
Cedex, France
6. ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX,United Kingdom