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Verhandlungen
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Berlin 2015 – scientific programme

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DS: Fachverband Dünne Schichten

DS 1: Organic Electronics and Photovoltaics

DS 1.8: Talk

Monday, March 16, 2015, 11:15–11:30, H 2032

Structure and Photovoltaic Performance of Chiral Anilino Squaraines — •Manuela Schiek1, Matthias Schulz2, Stefanie Brück1, Martin Silies3, Heiko Kollmann3, Christoph Lienau3, Arne Lützen2, and Jürgen Parisi11Energy and Semiconductor Research Laboratory, University of Oldenburg, Germany — 2Kekule-Institute for Organic Chemistry and Biochemistry, University of Bonn, Germany — 3Ultrafast Nano-Optics, University of Oldenburg, Germany

Small molecular semiconductors such as squaraines are advantageous compared to polymeric materials because they allow a more direct control of the structure on the molecular level and consequently solid state properties. Especially the implementation of chiral side chains introduces new functionalities such as circular dichroism. Different 1,3-bis(N,N-substituted-2,6-dihydroxy-anilino)squaraines with varying terminal N-substitution, in some cases including a stereogenic center, are investigated as single crystals, in thin films and blended with a fullerene acceptor as active layer in bulk heterojunction organic solar cells.

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