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
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.
Invited by J. Keller (Kolloquium)
Within the Physikalisches Kolloquium WS 2003-2004
last modified: 2019.10.11 Fr
Prof. Dr. Gianaurelio Cuniberti
Institute for Materials Science
visitors and courier address:
01062 Dresden, Germany