Controlling Electrical Properties of Conjugated Polymers via a Solution-Based p-Type Doping


  • K. H. Y. thanks C. D. T. for a studentship, and J. S. K. the EPSRC for an Advanced Research Fellowship.


original image

Tetrafluoro-tetracyano-quinodimethane (F4TCNQ) is used to p-dope conjugated polymers with a wide range of the HOMO levels via co-blending in a common organic solvent. Doping results in several orders of magnitude increase in the bulk conductivity and hole-current with reduced turn-on voltage. The effectiveness of doping increases as the HOMO level of the polymer becomes smaller.