Submicron Vertical Channel Organic Electrochemical Transistors with Ultrahigh Transconductance

Organic electrochemical transistors (OECTs) belong to the class of electrolyte gated organic (EGOTs) that offer a smooth interface with biology in combination high transconductance values typically few mS. Fabrication-wise, though, most up-to-date reported devices are limited two dimensional structures, where transistor channel is patterned on same plane as source and drain electrodes. Here, method introduced for fabrication integrated vertical OECTs (vOECTs) submicron length. By employing electrodeposition, sandwiched between electrodes created. Channel lengths down 60 nm demonstrated, giving rise ultrahigh up 275 Accounting voltage loss device connection tracks, an intrinsic vOECTs 500 mS found. The three-dimensional finding relevant application “organ-on-a-chip” implantable devices, amplification small footprint demanded.