Modeling and Simulation of Organic Semiconductors

During the last years, organic ttransistors have made a significant progress, and the first products like displays for car radios have already entered the market. Various attractive applications such as active matrix displays are expected to follow soon. The goal of this project is to integrate models, which account for the properties of this new class of devices, into a state-of-the art TCAD tool, namely the device simulator MINIMOS-NT. Special attention will be put on properly modeling of the distribution of the density of states, which is Gaussian shape rather than parabolic, as in solid-state semiconductors, the temperatur dependence of the mobility and the discontinuous bandgap. A Monte Carlo module will be developed to serve as reference to provide the necessary data for the calibration of the models for the device simulator. Models accounting for light emmision will be adapted and integrated at a later stage of this project.

During the last years, organic ttransistors have made a significant progress, and the first products like displays for car radios have already entered the market. Various attractive applications such as active matrix displays are expected to follow soon. The goal of this project is to integrate models, which account for the properties of this new class of devices, into a state-of-the art TCAD tool, namely the device simulator MINIMOS-NT. Special attention will be put on properly modeling of the distribution of the density of states, which is Gaussian shape rather than parabolic, as in solid-state semiconductors, the temperatur dependence of the mobility and the discontinuous bandgap. A Monte Carlo module will be developed to serve as reference to provide the necessary data for the calibration of the models for the device simulator. Models accounting for light emmision will be adapted and integrated at a later stage of this project.