Daniel J. Fuchs, P. Weiss
Jan 31, 2007
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0
Influential Citations
24
Citations
Journal
Nanotechnology
Abstract
Decanethiolate self-assembled monolayers (SAMs) on Au{111} have been used as host matrices for the molecular insertion of 1,10-decanedithiol from dilute ethanolic solutions into film defect sites. The inserted 1,10-decanedithiolate molecules were observed as protrusions in topographic scanning tunnelling microscopy (STM) images. With this method, each 1,10-decanedithiolate molecule adopts an orientation with a single Ausurface–thiolate bond with the distal thiol termini protruding from the SAM. Subsequent topographic STM images captured the molecular migration of inserted 1,10-decanedithiolate molecules, and this event is attributed either to molecular movement up or down a gold step edge or reconstruction of a gold vacancy island.