DPG Phi
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DPG

Berlin 2012 – scientific programme

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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 44.36: Poster

Friday, March 30, 2012, 09:30–12:00, Poster E

A multitechnique investigation of substituted pentacene nanorods — •Sabine-Antonia Savu1, Simon Schundelmaier1, Sabine Abb1, Christina Tönshoff2, Holger F. Bettinger2, Maria Benedetta Casu1, and Thomas Chassé11Institut für Physikalische und Theoretische Chemie, Universität Tübingen, Tübingen, Deutschland — 2Institut für Organische Chemie, Universität Tübingen, Tübingen, Deutschland

We report our investigation on nanorods of two newly synthesized substituted pentacenes by using X-ray photoemission spectroscopy (XPS), near edge X-ray absorption fine structure (NEXAFS) spectroscopy, and atomic force microscopy (AFM). The nanorods were deposited on Au(111). We have analyzed the photoemission spectra in detail by using a fitting procedure. XPS thickness dependent spectra show a different screening of the core-hole at the interface, while NEXAFS investigations suggest a molecular arrangement similar to what reported for pentacene thin films. In addition, the morphology of the nanorods has been investigated by using AFM, evaluating the nanorod characteristics also from a statistical point of view.

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