title: Universal scaling of the charge transport in large-area molecular junctions.
abstract: Charge transport through alkanes and para-phenylene oligomers is investigated in large-area molecular junctions. The molecules are self-assembled in a monolayer and contacted with a top electrode consisting of poly(3,4-ethylenedioxythiophene)-poly(4-styrenesulfonic acid) (PEDOT:PSS). The complete set of J(V,T) characteristics of both saturated and π-conjugated molecules can be described quantitatively by a single equation with only two fit parameters. The derived parameters, in combination with a variation of the bulk conductivity of PEDOT:PSS, demonstrate that the absolute junction resistance is factorized with that of PEDOT:PSS.
authors.affiliation: Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands.
authors.forename: Auke J
authors.initials: AJ
authors.lastname: Kronemeijer
authors.forename: Ilias
authors.initials: I
authors.lastname: Katsouras
authors.forename: Eek H
authors.initials: EH
authors.lastname: Huisman
authors.forename: Paul A
authors.initials: PA
authors.lastname: van Hal
authors.forename: Tom C T
authors.initials: TC
authors.lastname: Geuns
authors.forename: Paul W M
authors.initials: PW
authors.lastname: Blom
authors.forename: Dago M
authors.initials: DM
authors.lastname: de Leeuw
mesh_terms: D000473:Alkanes / Q000737:chemistry; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000737:chemistry*; D004553:Electric Conductivity; D004583:Electrons; D011108:Polymers / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry; D013451:Sulfonic Acids / Q000737:chemistry*; D013696:Temperature
chemical_list: D000473:Alkanes; D019086:Bridged Bicyclo Compounds, Heterocyclic; D011108:Polymers; D013438:Sulfhydryl Compounds; D013451:Sulfonic Acids; C121383:poly(3,4-ethylene dioxythiophene); C470023:docosane; C077114:styrenesulfonic acid polymer