The density of charge carriers contributing to the nanoscale conductivity in PTI-LiBr (3.00 10 20 cm -3 ) is orders of magnitude higher than what would be expected from an organic semiconductor with a large band gap and no doping. The ion free PTI-IF has a similar charge carrier density (2.07 10 20 cm -3 ) revealing that the ions are not responsible for generating electronic carriers in the organic crystals.