Fig. 2: Theoretical implications of a bistable Gibbs free energy function.
From: Bistable organic electrochemical transistors: enthalpy vs. entropy
a The bistability is expected to decrease for rising entropy (\(T{S}_{{{{{\rm{tr}}}}}}\)) and falling enthalpy (\({H}_{{{{{\rm{tr}}}}}}\)), which should be reflected in the transfer curve by an abating hysteresis. b The course of μ(ψ) can be considered an idealized cycle process, assembled of processes with dT = 0 and dμ = 0. Following a Maxwell construction, the integrals correspond to the chemical work performed (∣WCh∣), from which an in- and outflow of heat Q is to be expected. c The bistability suggests a non-monotonic progression of the subthreshold swing (SS) with temperature, where the conventionally expected positive slope only occurs once entropy dominates over enthalpy and the chemical potential is sufficiently monotonic (Eq. (9)).
