Dresden 2011 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 42: Poster I: Progress in Micro- and Nanopatterning: Techniques and Applications (jointly with O); Spins in Organic Materials; Ion Interactions with Nano Scale Materials; Organic Electronics and Photovoltaics; Plasmonics and Nanophotonics (jointly with HL and O); High-k and Low-k Dielectrics (jointly with DF); Organic Thin Films; Nanoengineered Thin Films; Layer Deposition Processes; Layer Properties: Electrical, Optical, and Mechanical Properties; Thin Film Characterisation: Structure Analysis and Composition; Application of Thin Films

DS 42.42: Poster

Mittwoch, 16. März 2011, 15:00–17:30, P1

Analysis of structure and electronic alignment of PTCDI-C13 thin films on metal surfaces — •Daniel Gebauer, Philip Schulz, Dominik Meyer, Christian Effertz, and Matthias Wuttig — RWTH Aachen, I. Institute of Physics (IA), D-52056 Aachen, Germany

N,N'-Ditridecylperylene-3,4,9,10-tetracarboxylic diimide (PTCDIC13) depicts a potential acceptor material for organic solar cells. To understand the mechanisms of film formation and charge carrier transfer, it is necessary to examine the interface effects between the organic layer and the metal contact.

In this study thin films of PTCDI-C13 with a thickness varying from single monolayers to 20 nm, are evaporated on Au, Ag, Cu, and Al substrates. The energy level alignment between the valence band of each metal and the molecular orbitals of the subsequently deposited organic layer is analyzed by Ultraviolet Photoelectron Spectroscopy (UPS). Structure and surface morphology of the PTCDI-C13 films have been investigated by Atomic Force Microscopy (AFM) and X-Ray Diffractometry (XRD) in order to study the growth behavior of these films.