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CPP: Chemische Physik und Polymerphysik

CPP 23: POSTER Functional Organic Thin Films

CPP 23.26: Poster

Donnerstag, 30. März 2006, 17:00–19:00, P2

Charge mobility in Pentacene TFTs: a comparison of I-V and capacitance measurements — •Matthias Fiebig, Stefan Schiefer, Martin Huth, Udo Beierlein, and Bert Nickel — Department für Physik and CeNS, Ludwig-Maximilians-Universität, München

Pentacene is one of the most promising materials for organic thin film transistors (OTFTs). We have prepared bottom contact Pentacene TFTs on SiO₂ by deposition in UHV. The high structural quality of the devices has been characterized by AFM and synchrotron x-ray diffraction. Transistor behavior has been tested by IV-measurements and mobilities of the order of 1 cm²/Vs have been archieved. Complementary capacitance measurements have been performed to address dynamic properties of the charge transport. The experimental results are simulated and analysed in collaboration with C. Erlen and P. Lugli, Institute for Nanoelectronics, TU München.