title: Attenuating negative differential resistance in an electroactive self-assembled monolayer-based junction.
abstract: The negative differential resistance (NDR) peak current observed in redox active self-assembled monolayer-based molecular junctions has been attenuated by controlling the composition of the molecular junction. Two approaches studied here include capping the electroactive ferrocenyl groups with beta-cyclodextrin and functionalizing the scanning tunneling microscope tip used to probe the self-assembled monolayer (SAM) with n-alkanethiols of different lengths. These are the first examples of systematic modification of the magnitude of the NDR response in a molecule-based system.
authors.affiliation: Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA.
authors.forename: Ronald A
authors.initials: RA
authors.lastname: Wassel
authors.forename: Grace M
authors.initials: GM
authors.lastname: Credo
authors.forename: Ryan R
authors.initials: RR
authors.lastname: Fuierer
authors.forename: Daniel L
authors.initials: DL
authors.lastname: Feldheim
authors.forename: Christopher B
authors.initials: CB
authors.lastname: Gorman