Figure 5. OECT structure and reactions governing operation.
(a) Cross-sectional representation of the OECT architecture and (b) redox reactions of the polymer (P) in aqueous solutions. The OECT is operated in the common source configuration with a Ag/AgCl gate electrode. Electrochemical redox reactions of a polymer including the voltage limits of a stable operation in aqueous solution versus Ag/AgCl26,31.