title: Light-triggered self-construction of supramolecular organic nanowires as metallic interconnects.
abstract: 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 × 10(3) S m(-1)) and a low interface resistance (<2 × 10(-4) Ω 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.
authors.affiliation: University of Strasbourg (UdS), 67000 Strasbourg, France.
authors.forename: Vina
authors.initials: V
authors.lastname: Faramarzi
authors.forename: Frédéric
authors.initials: F
authors.lastname: Niess
authors.forename: Emilie
authors.initials: E
authors.lastname: Moulin
authors.forename: Mounir
authors.initials: M
authors.lastname: Maaloum
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Dayen
authors.forename: Jean-Baptiste
authors.initials: JB
authors.lastname: Beaufrand
authors.forename: Silvia
authors.initials: S
authors.lastname: Zanettini
authors.forename: Bernard
authors.initials: B
authors.lastname: Doudin
authors.forename: Nicolas
authors.initials: N
authors.lastname: Giuseppone
mesh_terms: D004560:Electricity; D008027:Light; D008670:Metals / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D053770:Nanowires; D011108:Polymers / Q000737:chemistry
chemical_list: D008670:Metals; D011108:Polymers