Regensburg 2016 – scientific programme

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O: Fachverband Oberflächenphysik

O 85: Organic-Inorganic Systems IV: Electronic Structure

O 85.1: Invited Talk

Thursday, March 10, 2016, 15:00–15:30, S051

Electrostatic Design of Organic Materials and Hybrid Interfaces — •Egbert Zojer — Institute of Solid State Physics, NAWI Graz, Graz University of Technology, Petersgasse 16, 8010-Graz, Austria

In hybrid organic/inorganic interfaces collective electrostatic effects often determine electronic properties like the relative alignment of electronic states, adsorption-induced changes in the work-function, XPS shifts and ballistic transport properties. Here, we suggest ways of intentionally employing these effects for realizing new types of electrostatically designed nanoscopic materials. This includes the development of a modular and versatile toolbox for realizing complex interfacial structures like monolayer quantum-cascades or quantum-well structures. It also comprises the use of polar adsorbates on layered van-der Waals bonded materials like graphene or layered semiconductor structures with the aim of locally concentrating charge carriers for an adsorbate-driven patterning of conductive channels. Finally, I will address possibilities for electrostatically designing the energy landscape of self-assembled three-dimensional organic networks with possible applications in charge carrier separation or carrier injection.