Electron transport through a gold-bisthiolterthiophene-gold junction

Christophe Kergueris (1) , Jean-Philippe Bourgoin (1) , Serge Palacin (1) , Daniel Estève (2) , Cristian Urbina (2) , M. Magoga (3) , Christian Joachim (3)

1 SCM - Service de Chimie Moléculaire
2 SPEC - UMR3680 - Service de physique de l'état condensé
3 CEMES - Centre d'élaboration de matériaux et d'études structurales

Molecules of bisthiolterthiophene have been adsorbed on the two facing gold electrodes of a mechanically controllable break junction in order to form metal-molecule(s)-metal junctions. Current-voltage (I-V) characteristics have been recorded at room temperature. Zero bias conductances were measured in the 10-100 nS range and different kinds of non-linear I-V curves with step-like features were reproducibly obtained. A scattering model is used to interpret the experimental conductances as a function of the metal-molecule coupling strength.

Domains: Material chemistry

Christophe Kergueris, Jean-Philippe Bourgoin, Serge Palacin, Daniel Estève, Cristian Urbina, et al.. Electron transport through a gold-bisthiolterthiophene-gold junction. AIP Conference Proceedings, 1999, 486, pp.421-426. ⟨10.1063/1.59822⟩. ⟨cea-01057028⟩