Berlin 2015 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 61: Posters III (Organic-inorganic perovskite semiconductors; Organic photovoltaics and electronics; Photovoltaics; Energy science; New materials and concepts)

HL 61.21: Poster

Mittwoch, 18. März 2015, 15:00–20:00, Poster F

Polycyclic aromatic hydrocarbons in organic charge-transfer complexes — •Sebastian Witt¹, Antonia Morherr¹, Martin Baumgarten², Achim Rippert¹, and Cornelius Krellner¹ — ¹Physikalisches Institut, Goethe-Universität Frankfurt am Main — ²Max-Planck-Institut für Polymerforschung, Mainz

Polycyclic aromatic hydrocarbons were discovered to present a new class of organic superconductors [1]. The organic molecules, as e.g. Picene, takes the role of an acceptor, when intercalated with alkali metals. We present the results of new organic charge-transfer complexes, where the polycyclic aromatic hydrocarbons could be either the donor or the acceptor. Applying the horizontal vapor growth in vacuum or in an inert gas we succeeded to co-crystallize seven new complexes. These single crystals were characterized by x-ray powder diffraction, single crystal Laue-type diffraction, in reflection and transmission, uv/vis-spectrometry and atomic force microscopy. In this contribution, we present the structural and physical properties of these new charge transfer complexes.

[1] R. Mitsuhashi et al., Nature 464, 74 (2010).