Expanding the understanding of organic electrochemical transistor function

Organic electrochemical transistors (OECTs) have gained significant interest in recent years due to their ability transduce and amplify biochemical signals into easily recorded electrical signals. The magnitude of the amplification offered by an OECT is proportional its transconductance, gm, making gm important figure merit. Much attention has, therefore, been paid materials device geometries, which can maximize OECT's gm. However, less has role applied potentials various operational regimes. In this paper, we expand on seminal Bernards Malliaras model function include negative gate potentials, allowing prediction general biosensor performance over a broader application range. expanded results five regimes, only two were covered original model. We find optimal combination drain (negative) yielding maximal also that reducing pinch-off potential well below water-splitting limit yield larger windows at highest Our presents set guidelines for operation, possible and, associated (bio)sensor performance.