Fig. 3.
Potential at the interfaces as a function of the ion concentration. a Measured threshold voltage shift VSH as a function of the ion concentration (symbols) and Nernst potential at the gate/electrolyte interface VG/E (vs. SHE) calculated with Eq. (5) (solid line). b Potential at the electrolyte/polymer interface VE/P as a function of the ion concentration. Symbols are the measurements and solid line is calculated with Eq. (6). Circles are the mean value and error bars are the standard deviation calculated by modeling ten OECTs with various thicknesses