Regensburg 2010 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

DS: Fachverband Dünne Schichten

DS 29: Poster: Molecular Spintronics, Biomolecular and Functional Organic Layers, Organic Electronics and Photovoltaics, Plasmonics and Nanophotonics, Organic Thin Films, Nanoengineered Thin Films, Thin Film Characterisation,

DS 29.8: Poster

Mittwoch, 24. März 2010, 15:00–17:30, Poster A

Trap-state influence on charge carrier transport in perylene based OTFTs — •Christian Effertz, Ingolf Segger, Philip Schulz, and Matthias Wuttig — Institute of Physics (IA), RWTH Aachen University of Technology, 52056 Aachen, Germany

Organic Thin-Film Transistors (OTFTs) have been intensively researched due to their adaptability, e.g. as an active matrix for flexible displays or in low-cost RFID (Radio-Frequence-Identification) tags. Recent reports indicate that OTFTs can match their inorganic counterparts based on hydrogenated amorphous silicon (a-Si:H) in terms of mobility and I_on/I_off-ratio.

In order to gain a deeper insight in the yet not fully understood charge carrier transport in organic thin-film devices, we have produced and investigated perylene based bottom-gate top-contact OTFTs. Our measurements, including temperature dependent transfer characteristics, time-domain- and temperature-stimulated current, show a profound influence of trap-states on charge transport in organic electronic devices. For a more detailed study of the influence of trap-states on transistor characteristics, model calculations were carried out.