Berlin 2005 – wissenschaftliches Programm

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SYOO: Organic Optoelectronics and Photonics

SYOO 6: Poster

SYOO 6.38: Poster

Montag, 7. März 2005, 18:00–20:00, Poster TU A

Structural properties of pentacene thin film transistors — •Bert Nickel, Stefan Schiefer, Nok Tsao und Udo Beierlein — Ludwig-Maximilians Universität, München

The structural properties of pentacene thin films which have been grown on SiO2 and on an optically transparent polymer have been compared using x-ray reflectivity and grazing incidence diffraction. The analysis allows for quantifying the pentacene unit cell dimension, the dislocation densities within the thin film, and the molecular orientation as a function of growth temperature. Furthermore, the structural changes due to the Au-contacts (with and without passivation by a thiol layer) are demonstrated. Finally, we try to correlate the structural and the transport properties.