Fabrication And Electrical Characterization Of Vertical Electrolyte Transistor

Here, it is reported a vertical electrolyte transistor (VET) whose structure is based on stacked layers: bottom contact -> channel -> permeable intermediate electrode -> ion gel (electrolyte gate dielectric) -> gate top contact. This VET depicts versatility to work with two different mode of operation, as: Electrolyte-Gated Vertical Organic Field Effect Transistor (Electrolyte-Gated VOFET) or Vertical Organic Electrochemical Transistor (VOECT). The difference is regarding to the transistor transconductance that occurs due to induced charge carriers or ionic current, respectively. Here, the focus is on giving special attention to the electrical characterization of the VET diode cell in comparison to the VET full architecture. These measurements are able to provide the baseline output current from a VET and consequently distinguish it from possibles different modes of operation created by ionic species. Both modes of operation show that this VET is able to work at very low voltage range and drive a high current density.