Fig. 1: Morphology optimization and electrical characterization.
From: Flexible organic integrated electronics for self-powered multiplexed ocular monitoring
a Schematic of the integrated device and contact lens. The insets show the modification of electrode for Ca2+ and glucose sensor. b Transfer curves and related transconductance of the OECTs processed with different ethylene glycol ratio. c Transfer curves and related transconductance of the OECTs processed with different annealing temperature. The channel size of OECTs is 3 × 0.1 mm, measurements were carried out with 0.1 mM CaCl2 aqueous solution under −0.2 V drain bias. d One dimensional GIWAXS line profiles of the corresponding processing conditions. e The normalized drain current response as a function of the concentration of glucose and Ca2+. f The response of the calcium-selective OECT against sodium and potassium ions.
