Self-Polarization in Reference-Less Electrolyte-Gated Organic Field-Effect Transistors

Electrolyte-gated organic field-effect transistors (EGOFETs) were fabricated using 6,13-Bis(triisopropylsilylethynyl)pentacene (TIPS-Pentacene) as a p-type organic semiconductor. The devices were characterized as reference-less (RL) EGOFETs, and the self-polarization mechanism was studied. The fact that EGOFETs can exhibit field-effect behavior even without the gate electrode was demonstrated. This work provides useful guidelines for optimizing RL-EGOFET technology.