Electronic decoupling of a cyclophane from a metal surface.
Electronic self-decoupling of an organic chromophore from a metal substrate is achieved using a naphtalenediimide cyclophane to spatially separate one chromophore unit of the cyclophane from the substrate. Observations of vibronic excitations in scanning tunneling spectra demonstrate the success of this approach. These excitations contribute a significant part of the tunneling current and give rise to clear structure in scanning tunneling microscope images. We suggest that this approach may be extended to implement molecular functions at metal surfaces.
Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, 24098 Kiel, Germany.
Francesca
F
Matino
Guillaume
G
Schull
Felix
F
Köhler
Sandro
S
Gabutti
Marcel
M
Mayor
Richard
R
Berndt
D004553:Electric Conductivity; D004581:Electronics / Q000379:methods*; D006046:Gold / Q000737:chemistry; D007094:Imides / Q000737:chemistry*; D016252:Microscopy, Scanning Tunneling; D008956:Models, Chemical; D009281:Naphthalenes / Q000737:chemistry*; D013499:Surface Properties; D014732:Vibration
D007094:Imides; D009281:Naphthalenes; C542131:naphthalenediimide; D006046:Gold