A Compact Model for Organic Field-Effect Transistors With Improved Output Asymptotic Behaviors

Chang Hyun Kim (1) , Alejandra Castro-Carranza , Magali Estrada , Antonio Cerdeira , Yvan Bonnassieux (1) , Gilles Horowitz (1) , Benjamin Iñiguez

1 LPICM - Laboratoire de physique des interfaces et des couches minces [Palaiseau]

Here, we propose an advanced compact analytical current-voltage model for organic field-effect transistors (OFETs), which can be incorporated into SPICE-type circuit simulators. We improved the output saturation behavior by introducing a new asymptotic function that also enables more precise low-voltage current and conductance fitting. A new expression for the subthreshold current was suggested to cover all operation regimes of OFETs. All model parameters were extracted by a systematic method, and the comparison of the modeled current with the experimental data on pentacene-based OFETs confirmed the validity of the model over a wide operation range.

Domains: Materials Science [cond-mat.mtrl-sci]; Electronics

Chang Hyun Kim, Alejandra Castro-Carranza, Magali Estrada, Antonio Cerdeira, Yvan Bonnassieux, et al.. A Compact Model for Organic Field-Effect Transistors With Improved Output Asymptotic Behaviors. IEEE Transactions on Electron Devices, 2013, 60 (3), pp.1136-1141. ⟨10.1109/ted.2013.2238676⟩. ⟨hal-00790788⟩