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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1676
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dc.contributor.authorGanesh, V.-
dc.contributor.authorPal, Santanu Kumar-
dc.contributor.authorKumar, Sandeep-
dc.contributor.authorLakshminarayanan, V.-
dc.date.accessioned2007-01-04T11:02:24Z-
dc.date.available2007-01-04T11:02:24Z-
dc.date.issued2006-04-01-
dc.identifier.citationJournal of Colloid and Interface Science, 2006, Vol.296, p195-203en
dc.identifier.issn0021-9797-
dc.identifier.urihttp://hdl.handle.net/2289/1676-
dc.descriptionRestricted Access.en
dc.description.abstractSelf-assembled monolayers (SAMs) of liquid crystalline thiol-terminated alkoxycyanobiphenyl molecules with different alkyl chain lengths on Au surface have been studied for the first time using electrochemical techniques such as cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The barrier property of the SAM-modified surfaces was evaluated using two different redox probes, namely potassium ferro/ferri cyanide and hexaammineruthenium(III) chloride. It was found that for short-length alkyl chain thiol (C5) the electron transfer reaction of hexaammineruthenium(III) chloride takes place through tunneling mechanism. In contrast, redox reaction of potassium ferro/ferri cyanide is almost completely blocked by the SAM-modified Au surface. From the impedance data, a surface coverage value of >99.9% was calculated for all the thiol molecules.en
dc.format.extent649904 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttp://dx.doi.org/10.1016/j.jcis.2005.08.051en
dc.rights(2006) by Elsevieren
dc.subjectSelf-assembled monolayer (SAM)en
dc.subjectAlkoxycyanobiphenyl thiolen
dc.subjectNematic liquid crystalen
dc.subjectCyclic voltammetryen
dc.subjectElectrochemical impedance spectroscopyen
dc.subjectRedox reactionen
dc.subjectElectron transferen
dc.subjectTunnelingen
dc.titleSelf-assembled monolayers (SAMs) of alkoxycyanobiphenyl thiols on gold—A study of electron transfer reaction using cyclic voltammetry and electrochemical impedance spectroscopyen
dc.typeArticleen
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