Journal
NATURE CHEMISTRY
Volume 4, Issue 6, Pages 485-490Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/NCHEM.1332
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Funding
- European Research Council under the European Community [257099]
- CNRS
- icFRC
- University of Strasbourg
- NanoSciERA
- Agence Nationale de la Recherche
- projects Multiself
- STANWs
- French Ministry of Research
- Region Alsace
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The construction of soft and processable organic material able to display metallic conduction properties-a large density of freely moving charges-is a major challenge for electronics. Films of doped conjugated polymers are widely used as semiconductor devices, but metallic-type transport in the bulk of such materials remains extremely rare. On the other hand, single-walled carbon nanotubes can exhibit remarkably low contact resistances with related large currents, but are intrinsically very difficult to isolate and process. Here, we describe the self-assembly of supramolecular organic nanowires between two metallic electrodes, from a solution of triarylamine derivative, under the simultaneous action of light and electric field triggers. They exhibit a combination of large conductivity values (>5 x 10(3) S m(-1)) and a low interface resistance (<2 x 10(-4) Omega m). Moreover, the resistance of nanowires in series with metal interfaces systematically decreases when the temperature is lowered to 1.5 K, revealing an intrinsic metallic behaviour.
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