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Berlin 2015 – scientific programme

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DS: Fachverband Dünne Schichten

DS 4: Thin Film Characterisation II: Structure Analysis and Composition

DS 4.11: Talk

Monday, March 16, 2015, 17:45–18:00, H 0111

Structure and morphology of organic semiconductor-nanoparticle hybrids prepared by soft deposition — •Rupak Banerjee1, Jiří Novák1, Christian Frank1, Maria Girleanu2, Martin Brinkmann2, Falk Anger1, Christopher Lorch1, Johannes Dieterle1, Alexander Gerlach1, and Frank Schreiber11Institut für Angewandte Physik, Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany — 2Institut Charles Sadron CNRS, 23 rue du loess, 67034 Strasbourg, France

We present an extensive structural evaluation of hybrid architectures prepared by the “non-invasive” incorporation of gold nanoparticles (AuNPs) within an organic semiconductor matrix of diindenoperylene (DIP). The hybrid structures were characterized by advanced X-ray scattering techniques including grazing incidence small angle scattering (GISAXS), grazing incidence X-ray diffraction (GID), X-ray reflectivity (XRR) and complemented by atomic force microscopy (AFM) and transmission electron microscopy (TEM) measurements. We show that different strategies of incorporating the nanoparticles in the host matrix lead to drastically different structure and morphology. Particularly remarkable is the morphological change observed in the matrix of DIP as well as the AuNPs due to the influence of organic solvents. It is also demonstrated that AuNPs can be successfully used as tunable templates for the growth of the organic semiconductors with desired island sizes and distances.

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