Dresden 2011 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 3: Metal substrates: Adsorption of organic / bio molecules I
O 3.5: Vortrag
Montag, 14. März 2011, 12:15–12:30, PHY C213
Spectroscopy of STM-induced light emission from a molecular double decker on Ag(111) — •Natalia L. Schneider1, Francesca Matino1, Guillaume Schull2, Sandro Gabutti3, Marcel Mayor3, and Richard Berndt1 — 1Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany — 2Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 67034 Strasbourg, France — 3Department of Chemistry, University of Basel, St. Johannsring 19,CH-4056 Basel, Switzerland
A low-temperature scanning tunneling microscope (STM) is used to investigate the electronic states and the STM-induced light emission from naphtalenediimide cyclophane molecules on Ag(111). The cyclophane consists of two parallel π-systems, one of which is adsorbed directly at the metal substrate while the other chromophore is hoped to be partially decoupled from the surface. This intra-molecular decoupling scheme complements previous approaches where molecular multilayers or dielectrics were used. Spectra of the light emission from a single cyclophane layer exhibit molecule-related features and provide information on the excitation processes involved.