Microsecond Response in Organic Electrochemical Transistors: Exceeding the Ionic Speed Limit.

Friedlein, Jacob T; Donahue, Mary J; Shaheen, Sean E; Malliaras, George G; McLeod, Robert R · Adv Mater · 2016

basic_science · Level V

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Abstract

Organic electrochemical transistors (OECTs) are transistors that can have extrinsic transconductances as high as 400 S m<sup>-1</sup> , but they typically have response times on the order of 1 ms or longer. These response speeds are limited by ion transport. It is shown that OECTs can exceed the ionic response speed by a factor of 30 when operated in a high-speed bias regime.