title: Consecutive Charging of a Molecule-on-Insulator Ensemble Using Single Electron Tunnelling Methods.
abstract: We present the local charge state modification at room temperature of small insulator-supported molecular ensembles formed by 1,1'-ferrocenedicarboxylic acid on calcite. Single electron tunnelling between the conducting tip of a noncontact atomic force microscope (NC-AFM) and the molecular islands is observed. By joining NC-AFM with Kelvin probe force microscopy, successive charge build-up in the sample is observed from consecutive experiments. Charge transfer within the islands and structural relaxation of the adsorbate/surface system is suggested by the experimental data.
authors.affiliation: Department of Physics and Astronomy and ‡Department of Chemistry, The University of Utah , Salt Lake City, Utah 84112-0830, United States.
authors.forename: Philipp
authors.initials: P
authors.lastname: Rahe
authors.affiliation: Department of Physics and Astronomy and ‡Department of Chemistry, The University of Utah , Salt Lake City, Utah 84112-0830, United States.
authors.forename: Ryan P
authors.initials: RP
authors.lastname: Steele
authors.affiliation: Department of Physics and Astronomy and ‡Department of Chemistry, The University of Utah , Salt Lake City, Utah 84112-0830, United States.
authors.forename: Clayton C
authors.initials: CC
authors.lastname: Williams
keywords: Kelvin probe force microscopy; Localized charging; calcite; ferrocene; molecular charge state modification; single electron tunnelling