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Regensburg 2004 – wissenschaftliches Programm

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SYOH: Organic and Hybrid Systems for Future Electronics

SYOH 5: Poster

SYOH 5.22: Poster

Donnerstag, 11. März 2004, 18:00–21:00, B

Radiotracer diffusion measurements of noble metal atoms in crystalline organic films — •Michael Scharnberg1, Jörn Kanzow1, Rainer Adelung1, Klaus Rätzke1, Franz Faupel1, Christoph Pannemann2, Ulrich Hilleringmann2, and Jens Pflaum31Technische Fakultät, CAU Kiel, Kaiserstr. 2, 24143 Kiel — 2Department EIM-E/Sensorik, Univ. Paderborn — 33. Physikalisches Institut, Univ. Stuttgart

The application of organic field effect transistors (OFETs) for large scale low-cost electronic devices has lead to intensive research. Pentacene and Diindenoperylene (DIP) thin films on SiO2 are two prominent systems due to their high structural order out-of-plane. While bottom contact FET structures can be realized easily, preparation of top contacts may involve diffusion of metal atoms (typically Au) deep into the organic film changing its electronic properties. For a better understanding of the growth process and the diffusion of noble metal atoms in crystalline organic films, a radiotracer technique has been used to obtain diffusion profiles and the condensation coefficient of noble metals for these films. The results for Pentacene and DIP films will be presented with respect to their structural properties and will be compared to polymer films.

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