Contact effects in compact models of organic thin film transistors: Application to zinc phthalocyanine-based transistors

A new compact model is developed for organic thin film transistors (OTFTs) by incorporating the effects of the contacts on the transistor’s output characteristics. The model is based on physically realistic expressions that describe charge flow in the vicinity of the contacts and a previously developed drift model. The resulting new model maintains the compactness of our original drift-based model and is very suitable for circuit simulations. …