NSTI Nanotech 2009

A PSpice Compact Model for Organic Field-Effect Transistors

C. Ucurum, R.M. Meixner, H. Goebel
Helmut Schmidt University - University of the Federal Armed Forces Hamburg, DE

Keywords: thin film transistor, modeling, PSpice, pentacene, OFET, hysteresis


A simple and comprehensive approach for modeling organic thin film transistors (OTFT) is presented. The advantage of the model is that it is based on the standard equations used for silicon devices which allows the implementation in simulation tools as PSpice. The presented compact model extends the standard MOSFET model by additional current sources describing the dependence of the charge carrier mobility and the conductivity of the semiconductor layer on the gate bias. It also takes into account the hysteresis effects and shows good agreement with experimental data.
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