High-Performance Solution-Processable Poly(p-phenylene vinylene)s for Air-Stable Organic Field-Effect Transistors (pages 872–876)
A. J. J. M. van Breemen, P. T. Herwig, C. H. T. Chlon, J. Sweelssen, H. F. M. Schoo, E. M. Benito, D. M. de Leeuw, C. Tanase, J. Wildeman and P. W. M. Blom
Article first published online: 26 APR 2005 | DOI: 10.1002/adfm.200400445
Symmetrically substituted poly(p-phenylene vinylene)s (PPVs) with linear alkyl chains (e.g., R1, R2 = n-C11H23, R3 = n-C18H37 in Figure) are found to provide the highest charge-carrier mobilitites when used in organic field-effect transistors (as compared with unsymmetrical substitution or branched side chains). Annealing at 110 °C further improves mobility to ∼10-2 cm2V-1s-1 (see Figure) and provides transistors which are stable in air and in the dark.