Characterization and simulation of electrolyte-gated organic field-effect transistors.

Transient analysis of electrolyte-gated organic field effect transistors

A terminal charge and capacitance model is developed for transient behavior simulation of electrolyte-gated organic field effect transistors (EGOFETs). Based on the Ward-Dutton partition scheme, the charge and capacitance model is derived from our drain current model reported previously. The transient drain current is expressed as the sum of the initial drain current and the charging current, w...

Tuning the threshold voltage in electrolyte-gated organic field-effect transistors.

Low-voltage organic field-effect transistors (OFETs) promise for low power consumption logic circuits. To enhance the efficiency of the logic circuits, the control of the threshold voltage of the transistors are based on is crucial. We report the systematic control of the threshold voltage of electrolyte-gated OFETs by using various gate metals. The influence of the work function of the metal i...

On the mode of operation in electrolyte-gated thin film transistors based on different substituted polythiophenes

Organic Thin Film Transistors (OTFT), gated through an aqueous electrolyte, have extensively been studied as sensors in various applications. These water-gated devices are known to work both as electrochemical (Organic ElectroChemical Transistor OECT) and field-effect (Organic Field-Effect Transistor OFET) devices. To properly model and predict the response of water-gated OTFT sensors it is imp...

Effect of Gate Electrode Work-Function on Source Charge Injection in Electrolyte-Gated Organic Field-Effect Transistors

Linköping Studies in Science and Technology

The discovery of semi-conducting and conducting organic materials has opened new possibilities for electronic devices and systems. Applications, previously unattainable for conventional electronics, have become possible thanks to the development of conjugated polymers. Conjugated polymers that are both ionand electron conducting, allow for electrochemical doping and de-doping via reversible pro...