title: Electroluminescence of a polythiophene molecular wire suspended between a metallic surface and the tip of a scanning tunneling microscope.
abstract: The electroluminescence of a polythiophene wire suspended between a metallic surface and the tip of a scanning tunneling microscope is reported. Under positive sample voltage, the spectral and voltage dependencies of the emitted light are consistent with the fluorescence of the wire junction mediated by localized plasmons. This emission is strongly attenuated for the opposite polarity. Both emission mechanism and polarity dependence are similar to what occurs in organic light emitting diodes (OLED) but at the level of a single molecular wire.
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 (CNRS-Université de Strasbourg), 67034 Strasbourg, France.
authors.forename: Gaël
authors.initials: G
authors.lastname: Reecht
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 (CNRS-Université de Strasbourg), 67034 Strasbourg, France.
authors.forename: Fabrice
authors.initials: F
authors.lastname: Scheurer
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 (CNRS-Université de Strasbourg), 67034 Strasbourg, France.
authors.forename: Virginie
authors.initials: V
authors.lastname: Speisser
authors.affiliation: SPEC (CNRS URA2464), SPCSI, IRAMIS, CEA Saclay, 91191 Gif-Sur-Yvette, France.
authors.forename: Yannick J
authors.initials: YJ
authors.lastname: Dappe
authors.affiliation: Laboratoire de Chimie des Polymères, UMR 7610 (CNRS-Université Pierre et Marie Curie), 75252 Paris, France.
authors.forename: Fabrice
authors.initials: F
authors.lastname: Mathevet
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 (CNRS-Université de Strasbourg), 67034 Strasbourg, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Schull