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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

Monday, 27 October 2003
(at 16:15 in room H34)
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Molecular-scale electronics

Gianaurelio Cuniberti

Institut für Theoretische Physik
Universität Regensburg

Novel fabrication methods that create metallic contacts to a small number of conjugated organic molecules allow the study of the basic mechanisms of transport at the truly molecular scale. This will provide directions for the potential development of molecular-scale electronic systems.
Indeed, the primarily challenging problem of molecular electronics is measuring and predicting electron transport. That is because molecular electronics is strongly dependent on quality and nature of the contacts. The intrinsic barrier of the contacts can be strategically used to favor the design of specific devices.
This requires a more detailed account of the atomic structure of the interface. Green functions and density functional theories are the optimal tools for the characterization of the transport through single molecules clamped between two metallic contacts.
This colloquium will start with an introduction to the field, to the experiments, and to the theoretical tools for investigating molecular-scale transport. Examples of devices will follow focusing on (i) the bridged molecule, (ii) the role of the leads, and (iii) the molecule-plus-leads complex due to the importance of the contacts.

phys. dept. links: abstract (pdf file)

Invited by J. Keller (Kolloquium)

Within the Physikalisches Kolloquium WS 2003-2004

last modified: 2021.10.02 Sat
author: webadmin