[1] Optoelectronics Group,Department of Chemistry and Centre for Plastic Electronics
[2] Cavendish Laboratory,Department of Physics and Astronomy
[3] University of Cambridge,undefined
[4] JJ Thomson Avenue,undefined
[5] Cambridge CB3 0HE,undefined
[6] UK ,undefined
[7] Laboratory for Chemistry of Novel Materials,undefined
[8] Université de Mons,undefined
[9] 20 Place du Parc,undefined
[10] 7000 Mons,undefined
[11] Belgium ,undefined
[12] Centre for Science at Extreme Conditions,undefined
[13] University of Edinburgh,undefined
[14] Mayfield Road,undefined
[15] Edinburgh EH9 3JZ,undefined
[16] UK ,undefined
[17] Imperial College London,undefined
[18] London SW7 2AZ,undefined
[19] UK,undefined
[20] University of New Mexico,undefined
[21] 1919 Lomas Boulevard Northeast,undefined
[22] Albuquerque,undefined
[23] New Mexico 87131,undefined
[24] USA,undefined