Articolo in rivista, 2017, ENG, 10.1016/j.orgel.2016.11.027

A DC and small signal AC model for organic thin film transistors including contact effects and non quasi static regime

Valletta, A.; Rapisarda, M.; Calvi, S.; Fortunato, G.; Frasca, M.; Maira, G.; Ciccazzo, A.; Mariucci, L.

CNR IMM; Univ Catania; Univ Palermo; STMicroelectronics

We present a compact model for the DC and small signal AC analysis of Organic Thin Film Transistors (OTFTs). The DC part of the model assumes that the electrical current injected in the OTFT is limited by the presence of a metal/organic semiconductor junction that, at source, acts as a reverse biased Schottky junction. By including this junction, modeled as a reverse biased gated diode at source, the DC model is able to reproduce the scaling of the electrical characteristics even for short channel devices.

Organic electronics (Print) 41 , pp. 345–354

Keywords

Organic thin film transistors, DC model, AC model, Contact effects, parasitic capacitance, Non-quasi static small signal model

CNR authors

Calvi Sabrina, Mariucci Luigi, Fortunato Guglielmo, Valletta Antonio, Rapisarda Matteo

CNR institutes

IMM – Istituto per la microelettronica e microsistemi