Effect of surface roughness on the self-assembly of octadecanethiol monolayer on to polycrystalline noble metal surfaces

Subramanian, R.; Lakshminarayanan, V.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1023

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DC Field	Value	Language
dc.contributor.author	Subramanian, R.	-
dc.contributor.author	Lakshminarayanan, V.	-
dc.date.accessioned	2006-01-02T05:39:44Z	-
dc.date.available	2006-01-02T05:39:44Z	-
dc.date.issued	1999-03-10	-
dc.identifier.citation	Current Science, 1999, Vol. 76, p665-669.	en
dc.identifier.issn	0011-3891	-
dc.identifier.uri	http://hdl.handle.net/2289/1023	-
dc.description.abstract	The role of surface roughness on defect formation in ocatadecanethiol monolayer covered surfaces of gold, silver and copper has been investigated using cyclic voltammetry and scanning tunneling microscopy. The adsorption of alkanethiol on surfaces subjected to various 'pre-treatments like mechanical polishing using different grades of emery and alumina indicates that a surface polished with 0.05 μm alumina has a significantly greater number of defect sites, thereby allowing access to redox species, compared to a surface treated with coarse emery. Scanning tunneling microscopic studies reveal that for a given area, a 'smooth' alumina polished surface has a number of closely spaced corrugations compared to a surface roughened using course emery. From these results, we establish that there exists a direct corielation between surface roughness and barrier efficiency.	en
dc.format.extent	423034 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Indian Academy of Sciences, Bangalore, India.	en
dc.rights	Indian Academy of Sciences, Bangalore, India.	en
dc.title	Effect of surface roughness on the self-assembly of octadecanethiol monolayer on to polycrystalline noble metal surfaces	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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