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Berlin 2015 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 53: Inorganic/organic interfaces: Electronic properties II (joint session O, CPP)

CPP 53.12: Talk

Wednesday, March 18, 2015, 18:00–18:15, HE 101

Electrostatic design of monolayer propertiesBernhard Kretz1, David A. Egger1,2, and •Egbert Zojer11Institute of Solid State Physics, NAWI Graz, Graz University of Technology, Petersgasse 16, A-8010 Graz, Austria — 2Department of Materials and Interfaces, Weizmann Institute of Science, Rehovoth 76100, Israel

For raising the full potential of molecular electronics, it is necessary to control the nature of the electronic states within organic layers. In this contribution we present the concept of a modular toolbox that allows realizing a high level of control as far as the energetics and spatial localization of the states is concerned. By quantum-mechanical modelling we show that - based on this toolbox - it is, for example, possible to realize monolayer-based quantum-cascades and electron or hole quantum-well structures. This becomes possible by exploiting collective electrostatic effects naturally emerging in ensembles of polar molecules. As another element of the toolbox we discuss neutral radicals that can be applied for generating locally spin-polarized layers.

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