Regensburg 2016 – scientific programme
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O: Fachverband Oberflächenphysik
O 34: Nanostructures at Surfaces II
O 34.8: Talk
Tuesday, March 8, 2016, 12:15–12:30, H6
On-surface fabrication of acenes — •Justus Krüger1, Niko Pavliček2, Frank Eisenhut1, José M. Alonso3, Dolores Pérez3, Enrique Guitián3, Thomas Lehmann2, Dmitry Ryndyk2, André Gourdon4, Gerhard Meyer2, Leo Gross2, Diego Peña3, Gianaurelio Cuniberti1, and Francesca Moresco1 — 1Institute for Materials Science, Max Bergmann Center of Biomaterials, and Center for Advancing Electronics Dresden, TU Dresden, 01069 Dresden, Germany — 2IBM Research-Zurich, 8803 Rüschlikon, Switzerland — 3CIQUS and Departamento de Química Orgánica, Universidade de Santiago de Compostela. Santiago de Compostela 15782, Spain — 4CEMES, UPR 8011 CNRS, Nanosciences Group, 29 Rue J. Marvig, P.O. Box 94347, 31055 Toulouse, France
We present the on-surface reduction of acene-derivatives to form genuine acenes (hydrocarbons with linearly fused benzene rings) on Au(111) and Cu(111). The conversion is achieved by scanning tunneling microscopy (STM) tip-induced manipulation as well as thermal activation and is conclusively demonstrated by means of atomic force microscopy with atomic resolution. This observed transformation may pave the way for the on-surface preparation and stabilization of even higher acenes.