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dc.contributor.authorShen, Cai
dc.contributor.authorBuck, Manfred
dc.date.accessioned2014-05-02T10:31:07Z
dc.date.available2014-05-02T10:31:07Z
dc.date.issued2014-03-10
dc.identifier115264814
dc.identifierd6300678-a28f-4b18-8793-10fad9ec4946
dc.identifier000332782800001
dc.identifier84899090064
dc.identifier000332782800001
dc.identifier.citationShen , C & Buck , M 2014 , ' Nanoscale patterning of a self-assembled monolayer by modification of the molecule-substrate bond ' , Beilstein Journal of Nanotechnology , vol. 5 , pp. 258-267 . https://doi.org/10.3762/bjnano.5.28en
dc.identifier.issn2190-4286
dc.identifier.otherORCID: /0000-0003-1225-7607/work/56861210
dc.identifier.urihttps://hdl.handle.net/10023/4695
dc.descriptionFinancial support by the EU (STRP032109) and EPSRC (EP/D048761/1) is gratefully acknowledged.en
dc.description.abstractThe intercalation of Cu at the interface of a self-assembled monolayer (SAM) and a Au(111)/mica substrate by underpotential deposition (UPD) is studied as a means of high resolution patterning. A SAM of 2-(4'-methylbiphenyl-4-yl) ethanethiol (BP2) prepared in a structural phase that renders the Au substrate completely passive against Cu-UPD, is patterned by modification with the tip of a scanning tunneling microscope. The tip-induced defects act as nucleation sites for Cu-UPD. The lateral diffusion of the metal at the SAM-substrate interface and, thus, the pattern dimensions are controlled by the deposition time. Patterning down to the sub-20 nm range is demonstrated. The difference in strength between the S-Au and S-Cu bond is harnessed to develop the latent Cu-UPD image into a patterned binary SAM. Demonstrated by the exchange of BP2 by adamantanethiol (AdSH) this is accomplished by a sequence of reductive desorption of BP2 in Cu free areas followed by adsorption of AdSH. The appearance of Au adatom islands upon the thiol exchange suggests that the interfacial structures of BP2 and AdSH SAMs are different.
dc.format.extent10
dc.format.extent3229473
dc.language.isoeng
dc.relation.ispartofBeilstein Journal of Nanotechnologyen
dc.subjectCopperen
dc.subjectElectrodepositionen
dc.subjectGold adatomsen
dc.subjectNanolithographyen
dc.subjectNegative resisten
dc.subjectSen
dc.subjectQD Chemistryen
dc.subjectBDCen
dc.subject.lccQDen
dc.titleNanoscale patterning of a self-assembled monolayer by modification of the molecule-substrate bonden
dc.typeJournal articleen
dc.contributor.sponsorEuropean Commissionen
dc.contributor.sponsorEPSRCen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.identifier.doi10.3762/bjnano.5.28
dc.description.statusPeer revieweden
dc.identifier.grantnumberCONTRACT NO: 032109en
dc.identifier.grantnumberEP/D048761/1en


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