Adsorption behavior of conjugated {C}3-oligomers on Si(100) and HOPG surfaces

Details Adsorption behavior of conjugated {C}3-oligomers on Si(100) and HOPG surfaces Adsorption behavior of conjugated {C}3-oligomers on Si(100) and HOPG surfaces

2012-04-18

arxiv.org/abs/1204.3984v1

Langmuir 19, 8 (2003) 3350-3356

Physics

Chemical Physics

Scientific paper

10.1021/la026907n

A pi-conjugated {C}3h-oligomer involving three dithienylethylene branches bridged at the meta positions of a central benzenic core has been synthesized and deposited either on the Si(100) surface or on the HOPG surface. On the silicon surface, scanning tunneling microscopy allows the observation of isolated molecules. Conversely, by substituting the thiophene rings of the oligomers with alkyl chains, a spontaneous ordered film is observed on the HOPG surface. As the interaction of the oligomers is different with both surfaces, the utility of the Si(100) surface to characterize individual oligomers prior to their use into a 2D layer is discussed.

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