The detailed characterization of electrochemically switchable molecular assemblies on silicon electrodes

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dc.contributor.authorCiampi, Sen_AU
dc.contributor.authorJames, Men_AU
dc.contributor.authorChoudhury, MHen_AU
dc.contributor.authorDarwish, Nen_AU
dc.contributor.authorGooding, JJen_AU
dc.date.accessioned2013-11-08T03:26:34Zen_AU
dc.date.available2013-11-08T03:26:34Zen_AU
dc.date.issued2013-01-01en_AU
dc.date.statistics2013-11-08en_AU
dc.description.abstractIn this paper we explore a multi-step synthetic strategy toward fabrication of monolayer-modified Si(100) electrodes that can be electrochemically switched. The synthetic scheme is modular and benefits from an established intramolecular lactonization scheme of benzoquinone analogs. A redox-tagged pendant group can be released from the surface such as to allow for in situ monitoring of the switch process. We show that this model system can be used to elucidate chemical and structural events for a surface dynamic system that is rapidly gaining popularity. The influence of polarization times, overpotentials and semiconductor doping type on the kinetic of the switch event is also investigated. In both basic and acidic aqueous electrolytes the release of suitable redox-active markers is found to require unexpectedly large cathodic overpotentials. The release event is accompanied by minor oxidation of the electrode surface and the switched constructs can be regenerated by chemical means with no appreciable deterioration of surface quality.© 2013, Royal Society of Chemistryen_AU
dc.identifier.citationCiampi, S., James, M., Choudhury, M. H., Darwish, N. A., & Gooding, J. J. (2013). The detailed characterization of electrochemically switchable molecular assemblies on silicon electrodes. Physical Chemistry Chemical Physics, 15 (24), 9879-9890. doi:10.1039/c3cp50355ken_AU
dc.identifier.govdoc5103en_AU
dc.identifier.issn1463-9076en_AU
dc.identifier.issue24en_AU
dc.identifier.journaltitlePhysical Chemistry Chemical Physicsen_AU
dc.identifier.pagination9879-9890en_AU
dc.identifier.urihttp://dx.doi.org/10.1039/c3cp50355ken_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4906en_AU
dc.identifier.volume15en_AU
dc.language.isoenen_AU
dc.publisherRoyal Society of Chemistryen_AU
dc.subjectOxidationen_AU
dc.subjectFabricationen_AU
dc.subjectSiliconen_AU
dc.subjectElectrolytesen_AU
dc.subjectDynamicsen_AU
dc.subjectBenzoquinonesen_AU
dc.titleThe detailed characterization of electrochemically switchable molecular assemblies on silicon electrodesen_AU
dc.typeJournal Articleen_AU
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