Berlin 2018 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 5: Organic-inorganic hybrid systems and organic films I

O 5.6: Vortrag

Montag, 12. März 2018, 12:00–12:15, MA 042

Band Formation at the Tetraazaperopyrene/Au(111) Interface — •Arnulf Stein¹, Benjamin Günther², Lutz H. Gade², and Petra Tegeder¹ — ¹Physikalisch-Chemisches Institut, Universität Heidelberg — ²Anorganisch-Chemisches Institut, Universität Heidelberg

For the performance of organic semiconductor based (opto)electronic devices the properties of organic/inorganic interfaces play a crucial role. A new class of polyheterocyclic aromatics are the 1,3,8,10- tetraazaperopyrenes (TAPPs) which have already shown to be promising organic semiconductors for applications [1-2]. We studied TAPP-derivatives adsorbed on Au(111) using energy- and angle-resolved two-photon photoemission spectroscopy (2PPE). We determined the electronic structure and observed band formation at the TAPP/Au(111) interfaces.

[1] Martens, S. C. et al., Chem. Eur. J. 18, 3498-3509 (2012).

[2] Hahn, L. et al., Chem. Eur. J. 17691-17700 (2015).