title: Cyclic conductance switching in networks of redox-active molecular junctions.
abstract: Redox-active dithiolated tetrathiafulvalene derivatives (TTFdT) were inserted in two-dimensional nanoparticle arrays to build interlinked networks of molecular junctions. Upon oxidation of the TTFdT to the dication state, we observed a conductance increase of the networks by up to 1 order of magnitude. Successive oxidation and reduction cycles demonstrated a clear switching behavior of the molecular junction conductance. These results show the potential of interlinked nanoparticle arrays as chemical sensors.
authors.affiliation: Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056, Basel, Switzerland.
authors.forename: Jianhui
authors.initials: J
authors.lastname: Liao
authors.forename: Jon S
authors.initials: JS
authors.lastname: Agustsson
authors.forename: Songmei
authors.initials: S
authors.lastname: Wu
authors.forename: Christian
authors.initials: C
authors.lastname: Schönenberger
authors.forename: Michel
authors.initials: M
authors.lastname: Calame
authors.forename: Yann
authors.initials: Y
authors.lastname: Leroux
authors.forename: Marcel
authors.initials: M
authors.lastname: Mayor
authors.forename: Olivier
authors.initials: O
authors.lastname: Jeannin
authors.forename: Ying-Fen
authors.initials: YF
authors.lastname: Ran
authors.forename: Shi-Xia
authors.initials: SX
authors.lastname: Liu
authors.forename: Silvio
authors.initials: S
authors.lastname: Decurtins
mesh_terms: D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D006571:Heterocyclic Compounds / Q000737:chemistry*; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D010084:Oxidation-Reduction; D010316:Particle Size; D012815:Signal Processing, Computer-Assisted
chemical_list: D006571:Heterocyclic Compounds; C063887:tetrathiafulvalene