Adsorption of an organic zwitterion on a Si(111)-7 x 7 surface at room temperature

Younes Makoudi (1) , Mohamed El Garah (1) , Frank Palmino (1) , Eric Duverger (1) , Madjid Arab (1, 2) , Frederic Cherioux (1)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
2 IM2NP - Institut des Matériaux, de Microélectronique et des Nanosciences de Provence

The couple sulfonato/Si(111)-7 x 7 leads to remarkable 2D chiral molecular assembly with a stability improved at room temperature. The voltage-dependency of the STM images has been experimentally investigated and the correlation between STM images and PDOS has been studied. The proposed empirical model of the adsorption of molecules on Si(111)-7 x 7 has been justified by the experimental and theoretical data.

Domaines: Chimie organique; Science des matériaux [cond-mat.mtrl-sci]; Matériaux

Younes Makoudi, Mohamed El Garah, Frank Palmino, Eric Duverger, Madjid Arab, et al.. Adsorption of an organic zwitterion on a Si(111)-7 x 7 surface at room temperature. Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2008, 602 (16), pp.2719-2723. ⟨10.1016/j.susc.2008.06.003⟩. ⟨hal-00312924⟩