Figure 2. Schematic representation of a transfer curve showing the dependence of the drain current ID from the gate voltage VG for a transistor in the accumulation mode (left) and the depletion mode (right)

From

Organic Electrochemical Transistors (OECTs) - Hands-on Experiment and Teaching Materials

Dustin Freimuth, Xuqiang Xu, Jana Zaumseil, Silvia Janietz, Amitabh Banerji

World Journal of Chemical Education. 2026, 14(1), 11-17 doi:10.12691/wjce-14-1-2