Fig. 5
Aqueous stability of Crys-P and EG-P OECTs. a The saturation-regime transfer curves of crystallized PEDOT:PSS (Crys-P) and b 5% ethylene glycol-treated PEDOT:PSS (EG-P) OECTs over aging time in an aqueous 0.1 M NaCl solution. c The color-coded contour plots of transconductance (gm) of Crys-P and d EG-P films measured at the same condition as in (a, b). e Normalized current on/off ratio traced during the repeated VG switching up to 2000 cycles (VG = 0.6 V [off] and 0 V [on], ∆t = 0.5 s). f Output characteristics of Crys-P (left panel) and EG-P (right panel) OECTs before (blue curves) and after (orange curves) autoclave sterilization while VG was swept from 0 to 0.6 V with the increment of 0.1 V
