title: Charge transport in photoswitchable dimethyldihydropyrene-type single-molecule junctions.
abstract: The conductance properties of a photoswitchable dimethyldihydropyrene (DHP) derivative have been investigated for the first time in single-molecule junctions using the mechanically controllable break junction technique. We demonstrate that the reversible structure changes induced by isomerization of a single bispyridine-substituted DHP molecule are correlated with a large drop of the conductance value. We found a very high ON/OFF ratio (>10(4)) and an excellent reversibility of conductance switching.
authors.affiliation: Département de Chimie Moléculaire, UMR CNRS-5250, Institut de Chimie Moléculaire de Grenoble, FR CNRS-2607, Université Joseph Fourier Grenoble I, BP 53, 38041 Grenoble Cedex 9, France.
authors.forename: Diego
authors.initials: D
authors.lastname: Roldan
authors.forename: Veerabhadrarao
authors.initials: V
authors.lastname: Kaliginedi
authors.forename: Saioa
authors.initials: S
authors.lastname: Cobo
authors.forename: Viliam
authors.initials: V
authors.lastname: Kolivoska
authors.forename: Christophe
authors.initials: C
authors.lastname: Bucher
authors.forename: Wenjing
authors.initials: W
authors.lastname: Hong
authors.forename: Guy
authors.initials: G
authors.lastname: Royal
authors.forename: Thomas
authors.initials: T
authors.lastname: Wandlowski