Dresden 2014 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 29: Poster: Organic semiconductors and hybrid organic-inorganic heterostructures / Organic photovoltaics

HL 29.2: Poster

Montag, 31. März 2014, 17:00–20:00, P2

Electronic and structural properties of a novel Picene - F4TCNQ based charge transfer material — •Torsten Hahn¹ and Benjamin Mahns² — ¹Institute for Theoretical Physics, TU Freiberg, D-09596 Freiberg — ²IFW Dresden, P.O. Box 270116, D-01171 Dresden, Germany

Based on the resolved crystal structure the electronic structure, optical excitations and transport properties of novel Picene-F4TCNQ mixed crystals have been investigated using experimental as well as theoretical techniques. The results are compared to those of the pure compounds as well as to other charge transfer salts. The density functional theory (DFT) based theoretical calculations together with electron energy loss spectroscopy (EELS) and transport measurement results reveal the details of the charge transfer process and resolve the electronic structure close to the Fermi level.