Self-assembly of zwitterionic molecules on a Au(23 23 21) surface at low temperature

Younes Makoudi (1) , Clément Didiot (2) , Frank Palmino (1) , Eric Duverger (1) , Bertrand Kierren (2) , Daniel Malterre (2) , Frédéric Chérioux (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
2 IJL - Institut Jean Lamour

The adsorption of zwitterionic (E) 4-methoxy-4′-(3-n-sulfonatopropyl)stilbazolium (MSPS) molecules on the stepped vicinal Au(23 23 21) surface was studied by scanning tunneling microscopy (STM) at low temperature as a function of the molecular coverage. At the sub-half monolayer, a supramolecular network based on MSPS is preferentially adsorbed onto face-centered cubic stacking regions. At the monolayer, a complete periodic supramolecular film is obtained.

Mots clés: Zwitterionic molecules; Electrostatic interactions; Scanning tunneling microscopy; Au(1 1 1)

Domaines: Acoustique [physics.class-ph]; Chimie organique; Agrégats Moléculaires et Atomiques [physics.atm-clus]; Matériaux; Micro et nanotechnologies/Microélectronique

Younes Makoudi, Clément Didiot, Frank Palmino, Eric Duverger, Bertrand Kierren, et al.. Self-assembly of zwitterionic molecules on a Au(23 23 21) surface at low temperature. Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2010, 604 (1), pp.27-31. ⟨10.1016/j.susc.2009.10.012⟩. ⟨hal-02300332⟩