Steady-State and Transient Behavior of Ionic Liquid Crystal Elastomers Based Organic Electrochemical Transistors

Recently, organic electrochemical transistors (OECTs) have received lots of attention for variety of applications, particularly in the areas of bioelectronics, due to attractive characteristics, such as low voltage operation, flexibility, high transconductance and biocompatibility. [1–3] Our present study is motivated by ionic electroactive polymers (iEAPs) [4,5] and the new class of material-ionic liquid crystal elastomers (iLCEs) [6]. Here, we report a novel flexible OECT based on iLCE solid electrolyte. More importantly, this transistor does not require a substrate as traditional transistor does. The effect of molecular alignment (planar, homeotropic, hybrid and isotropic) of the solid electrolyte (iLCE) on the steady-state (transfer and output) and transient behavior of the transistor is studied.

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[6] C. Feng et al., Macromol. Rapid Commun. 40, 1900299 (2019).