title: Fullerene-based anchoring groups for molecular electronics.
abstract: We present results on a new fullerene-based anchoring group for molecular electronics. Using lithographic mechanically controllable break junctions in vacuum we have determined the conductance and stability of single-molecule junctions of 1,4-bis(fullero[c]pyrrolidin-1-yl)benzene. The compound can be self-assembled from solution and has a low-bias conductance of 3 x 10(-4) G0. Compared to 1,4-benzenedithiol the fullerene-anchored molecule exhibits a considerably lower conductance spread. In addition, the signature of the new compound in histograms is more significant than that of 1,4-benzenediamine, probably owing to a more stable adsorption motif. Statistical analyses of the breaking of the junctions confirm the stability of the fullerene-gold bond.
authors.affiliation: Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands. martin@physics.leidenuniv.nl
authors.forename: Christian A
authors.initials: CA
authors.lastname: Martin
authors.forename: Dapeng
authors.initials: D
authors.lastname: Ding
authors.forename: Jakob Kryger
authors.initials: JK
authors.lastname: Sørensen
authors.forename: Thomas
authors.initials: T
authors.lastname: Bjørnholm
authors.forename: Jan M
authors.initials: JM
authors.lastname: van Ruitenbeek
authors.forename: Herre S J
authors.initials: HS
authors.lastname: van der Zant