Fig. 5
From: Tuning charge transport dynamics via clustering of doping in organic semiconductor thin films
Changes in surface potential contrast as the polymers de-dope. a Histograms of the surface potential contrast distribution, b Gaussian fit to each histogram, and the c mean and d width of the Gaussian fits of a film of poly(3-hexylthiophene) (P3HT) initially doped at 25 °C as it spontaneously de-dopes
