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Regensburg 2013 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 31: Poster: Organic Electronics and Photovoltaics (joint session DS/HL/O/CPP)

CPP 31.1: Poster

Wednesday, March 13, 2013, 16:30–18:30, Poster C

Templating effects of 6T layers for organic DIP layers — •Christopher Lorch, Alexander Hinderhofer, Rupak Banerjee, Christian Frank, Johannes Dieterle, Alexander Gerlach, and Frank Schreiber — Institut für Angewandte Physik, Universität Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany

Recently, the donor-acceptor combination of the two compounds, α-sexithiophene (6T) [1] and diindenoperylene (DIP) [2], respectively, has shown an extraordinarily high open circuit voltage in organic solar cells with a planar heterojunction (PHJ) architecture [3].

Synchrotron based real-time in situ X-ray diffraction experiments were performed to study the temperature-dependent growth characteristics of 6T. Furthermore, the influence of the structural properties of the 6T layer on the top DIP layer were investigated. In this contribution, the following points are discussed: i) Dependence of the ratio of lying and standing domains in the top DIP layer on the corresponding ratio in the bottom 6T layer. ii) The thickness dependence of the DIP layer structure. iii) Possible reorganization effects in the bottom layer during the growth of the top layer. iv) The dependence of top layer structure on the temperature.

[1] W. Steinkopf et al., Justus Liebigs Ann. Chem. 546, 180-199 (1941)

[2] A. C. Dürr et al., Phys. Rev. Lett. 90, 016104 (2003)

[3] U. Hörmann et al., Phys. Status Solidi RRL 5, 241-243 (2011)

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