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Article Dans Une Revue Langmuir Année : 2008

Self-assembly of an octanethiol monolayer on a gold-stepped surface

Résumé

We investigate the influence of the native staircase nanostructure of a Au(111) vicinal surface upon the self-assembly of alkylthiols. Through a comparison with standard alkylthiol SAMs deposited on Au(111) flat surfaces, we show that on the vicinal surface the octanethiol monolayer (OT SAM) reproduces the nanopatterned staircase structure, giving rise to a new kind of molecular layer self-ordered on the nanometer scale. The SAM's structure is determined by UHV STM and PM-IRRAS measurements and exhibits a specific behavior relative to the nanostructured substrate. The differences from the film grown on Au(111) are attributed to the influence of step edges on the molecular packing, leading to a specific 2D crystallographic order through the step edges.
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Dates et versions

hal-01987581 , version 1 (21-01-2019)

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  • HAL Id : hal-01987581 , version 1

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Nicolas Battaglini, Vincent Repain, Philippe Lang, Gilles Horowitz, Sylvie Rousset. Self-assembly of an octanethiol monolayer on a gold-stepped surface. Langmuir, 2008, 24 (5), pp.2042-2050. ⟨hal-01987581⟩
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