Regensburg 2013 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

DS: Fachverband Dünne Schichten

DS 32: Poster Session IV: Atomic layer deposition; Organic thin films; Organic Electronics and Phototovoltaics; Organic Materials for Spintronics - from spinterface to devices; Thin film photovoltaic materials and solar cells

DS 32.29: Poster

Donnerstag, 14. März 2013, 17:00–20:00, Poster B2

The drying process of spin coated polytriarylamine and poly(3-hexylthiophene) thin films studied by IR spectroscopy — •Michael Sendner, Jens Trollmann, and Annemarie Pucci — Kirchhoff-Institut für Physik der Universität Heidelberg

Solution processed organic semiconductor thin films are attracting increasing interest due to the possible low cost production in a roll-to-roll printing process. However the drying of such films is not well understood yet. We analyze the drying process of spin coated polytriarylamine (PTAA) and poly(3-hexylthiophene) (P3HT) films on silicon substrates in a time frame from minutes to hours after production. For this purpose we are looking at characteristic vibrational modes of the solvents, excited by mid infrared light, as well as at film morphology. Further knowledge of the drying process will offer the possibility to control important parameters of the film formation during processing. Funding by BMBF (Polytos) is gratefully acknowledged.