Berlin 2012 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 44: Poster IV: Thin film photovoltaics; Organic electronics and photovoltaics (jointly with CPP, HL, O); Organic thin films; Trends in atomic layer deposition (Focused session)

DS 44.32: Poster

Freitag, 30. März 2012, 09:30–12:00, Poster E

Influence of pre-structuring on self-organized pattern formation at organic-metal interfaces - experiment vs. modeling — •Florian Szillat and S.G. Mayr — Leibniz-Institut fuer Oberflaechenmodifizierung, Translationszentrum fuer regenerative Medizin und Fakultaet fuer Physik und Geowissenschaften der Universitaet Leipzig, 04318 Leipzig

Self-organized pattern formation observed during physical vapor deposition of organic materials on inorganic substrates leads to characteristic structure evolution up to film thicknesses of some tens of nanometers. By employing a combined experimental-computational approach we demonstrate the capability of a continuum model to describe structure evolution during poly(bisphenol A)carbonate deposition on rough copper surfaces [1]. The next step on the route to computer-assisted interface engineering is carried out by modeling poly(bisphenol A)carbonate deposition on pre-structured copper surfaces by means of stochastic rate equations. These predictions are compared with experiments on physical vapor deposition experiments with pre-patterned copper substrates, which are subsequently analyzed with atomic force microscopy. This allows conclusions on the underlying physical processes. This project is funded by the German BMBF, PTJ-BIO, Grant Number: 0313909.

[1] F. Szillat and S. G. Mayr, Phys. Rev. B 84, 115462 (2011)