The nature of alkanethiol self-assembled monolayer adsorption on sputtered gold substrates

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dc.contributor.authorO'Dwyer, Colm
dc.contributor.authorGay, G.
dc.contributor.authorViaris de Lesegno, B.
dc.contributor.authorWeiner, J.
dc.contributor.funderEuropean Commissionen
dc.contributor.funderRégion Midi-Pyrénées, Franceen
dc.contributor.funderMinistère de l'Éducation nationale, de l'Enseignement supérieur et de la Recherche, Franceen
dc.date.accessioned2016-07-15T10:26:24Z
dc.date.available2016-07-15T10:26:24Z
dc.date.issued2004-08-12
dc.date.updated2012-11-30T12:10:13Z
dc.description.abstractA detailed study of the self-assembly and coverage by 1-nonanethiol of sputtered Au surfaces using molecular resolution atomic force microscopy (AFM) and scanning tunneling microscopy (STM) is presented. The monolayer self-assembles on a smooth Au surface composed predominantly of {111} oriented grains. The domains of the alkanethiol monolayer are observed with sizes typically of 5-25 nm, and multiple molecular domains can exist within one Au grain. STM imaging shows that the (4 × 2) superlattice structure is observed as a (3 × 2√3) structure when imaged under noncontact AFM conditions. The 1-nonanethiol molecules reside in the threefold hollow sites of the Au{111} lattice and aligned along its lattice vectors. The self-assembled monolayer (SAM) contains many nonuniformities such as pinholes, domain boundaries, and monatomic depressions which are present in the Au surface prior to SAM adsorption. The detailed observations demonstrate limitations to the application of 1-nonanethiol as a resist in atomic nanolithography experiments to feature sizes of ∼20 nm.en
dc.description.sponsorshipEuropean Commission (IST Program under contract IST-2001-32264; Human Potential Program contract HPRN-CT-2002-00304); Région Midi-Pyrénées, France (contract SFC/CR 02/22); Ministère de l'Éducation nationale, de l'Enseignement supérieur et de la Recherche, France (ACI-Nanosciences-Nanotechnologies Program)en
dc.description.statusPeer revieweden
dc.description.versionSubmitted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationO'Dwyer, C., Gay, G., Viaris de Lesegno, B. and Weiner, J (2004) 'The nature of alkanethiol self-assembled monolayer adsorption on sputtered gold substrates', Langmuir, 20(14), pp. 8172-8182. http://dx.doi.org/10.1021/la049103ben
dc.identifier.doi10.1021/la049103b
dc.identifier.endpage8182en
dc.identifier.issn0743-7463
dc.identifier.issn1520-5827
dc.identifier.issued14en
dc.identifier.journaltitleLangmuiren
dc.identifier.startpage8172en
dc.identifier.urihttps://hdl.handle.net/10468/2886
dc.identifier.volume20en
dc.language.isoenen
dc.publisherAmerican Chemical Societyen
dc.rights© 2004 American Chemical Society. This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in in Langmuir, copyright © American Chemical Society after peer review. To access the final edited and published work see http://pubs.acs.org/doi/full/10.1021/la049103ben
dc.subjectAdsorptionen
dc.subjectAtomic force microscopyen
dc.subjectGolden
dc.subjectMolecular structureen
dc.subjectNanotechnologyen
dc.subjectScanning tunneling microscopyen
dc.titleThe nature of alkanethiol self-assembled monolayer adsorption on sputtered gold substratesen
dc.typeArticle (peer-reviewed)en
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