Regensburg 2016 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 92: Postersession DS/HL

HL 92.26: Poster

Donnerstag, 10. März 2016, 16:00–19:00, Poster A

Interface Analysis of PTCDI-C1 thin films on polycrystalline silver surfaces — •Guangcheng Huang, Carolin C. Jacobi, Julia Rittich, Cathy Jodocy, and Matthias Wuttig — I. Institute of Physics (IA), RWTH Aachen University, Aachen, Germany

Electronic devices based on organic thin films, such as organic solar cells (OSCs) and organic thin film transistors (OTFTs), have been greatly improved in the last decade. Understanding the interface effects between organic thin films and metal surfaces is one of the crucial steps to further improve these devices. The organic material N,N'-Dimethyl-3,4,9,10-perylenetetracarboxylic diimide (PTCDI-C1) is a promising n-type semiconductor for the application in OSCs and OTFTs. In this work, thin films of PTCDI-C1 are deposited by organic molecular beam deposition (OMBD) with varying film thicknesses onto polycrystalline silver surfaces. The energy level alignment and binding state between the metal surface and the organic molecule are determined in-situ by photoelectron spectroscopy (PES) and inverse photoelectron spectroscopy (IPES). In addition, the morphology of the organic thin films is investigated by atomic force microscopy (AFM) and the structure by X-ray diffraction (XRD).