Resumen de Modelado de los mecanismos físicos y las estructuras constituyentes de un transistor de efecto campo organico
In modern organic semiconductor devices, the performance of the device is limited by non-idealities which are not characterized by traditional models of transport.
A physical model that includes several transport mechanisms suited to organic devices is proposed in this thesis. These physical mechanisms are charge injection (thermionic and tunnelling), charge creation at metal-organic interface (electrochemically), and charge transport through the organic layer (charge drift and space charge effects).
Organic diodes and organic thin film transistors have been studied using the proposed model to obtain a better understanding of the physical and electrochemical phenomena that determine their performance characteristics. The dependence of the current with the applied voltage and temperature through these organic semiconductor devices, have been carefully reviewed and comparisons between predictions from the proposed models and experiments studied. These comparisons validate the models by showing the good agreement between experimental data with model calculations for both organic semiconductor diodes and thin-film transistors.
