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dc.contributor.authorHerrer, I. Lucíaes_ES
dc.contributor.authorIsmael, Ali K.es_ES
dc.contributor.authorMartín, Santiagoes_ES
dc.contributor.authorMilan, David C.es_ES
dc.contributor.authorSerrano, José Luises_ES
dc.contributor.authorNichols, Richard J.es_ES
dc.contributor.authorLambert, Colin J.es_ES
dc.contributor.authorCea, Pilares_ES
dc.date.accessioned2020-03-03T08:18:54Z-
dc.date.available2020-03-03T08:18:54Z-
dc.date.issued2019-
dc.identifier.citationNanoscale 11(34): 15871-15880 (2019)es_ES
dc.identifier.issn2040-3364-
dc.identifier.urihttp://hdl.handle.net/10261/202508-
dc.description.abstractWhen a molecule is bound to external electrodes by terminal anchor groups, the latter are of paramount importance in determining the electrical conductance of the resulting molecular junction. Here we explore the electrical properties of a molecule with bidentate anchor groups, namely 4,4′-(1,4-phenylenebis(ethyne-2,1-diyl))bis(pyridin-2-amine), in both large area devices and at the single molecule level. We find an electrical conductance of 0.6 × 10−4G0 and 1.2 × 10−4G0 for the monolayer and for the single molecule, respectively. These values are approximately one order of magnitude higher than those reported for monodentate materials having the same molecular skeleton. A combination of theory and experiments is employed to understand the conductance of monolayer and single molecule electrical junctions featuring this new multidentate anchor group. Our results demonstrate that the molecule has a tilt angle of 30° with respect to the normal to the surface in the monolayer, while the break-off length in the single molecule junction occurs for molecules having a tilt angle estimated as 40°, which would account for the difference in their conductance values per molecule. The bidentate 2-aminepyridine anchor is of general interest as a contact group, since this terminal functionalized aromatic ring favours binding of the adsorbate to the metal contact resulting in enhanced conductance values.es_ES
dc.description.sponsorshipP. C. and J. L. S. are grateful for financial assistance from Ministerio de Economía y Competitividad from Spain and fondos FEDER in the framework of projects MAT2016-78257-R, CTQ2015-70174-P and PGC2018-097583-B-I00. J. L. S. also acknowledges the funded project Hierarchical Self Assembly of Polymeric Soft Systems, “SASSYPOL”, from the 7th Framework Programme (CEE, Ref-607602). L. H., S. M., J. L. S, and P. C. acknowledge support from DGA/Fondos FEDER (construyendo Europa desde Aragón) for funding PLATON (E31_17R) and CLIP (E47_17R) research groups. R. J. N. thanks EPSRC for funding (EP/M029522/1, EP/M005046/1 and EP/K007785/1). A. K. I. and C. J. L. acknowledge financial support from the UK EPSRC, through grant no. EP/M014452/1, EP/P027156/1 and EP/N03337X/1. This work was additionally supported by the European Commission is provided by the FET Open project 767187 – QuIET and the EU project Bac-to-Fuel. A. K. I. is grateful for financial assistance from Tikrit University (Iraq), and the Iraqi Ministry of Higher Education (SL-20).es_ES
dc.language.isoenges_ES
dc.publisherRoyal Society of Chemistry (UK)es_ES
dc.relationPGC2018-097583-B-100/AEI/10.13039/501100011033-
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2015-70174-Pes_ES
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-097583-B-100es_ES
dc.relationPGC2018-097583-B-100/AEI/10.13039/501100011033es_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2016-78257-Res_ES
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/607602es_ES
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/767187es_ES
dc.rightsclosedAccesses_ES
dc.titleSingle molecule vs. large area design of molecular electronic devices incorporating an efficient 2-aminepyridine double anchoring groupes_ES
dc.typeartículoes_ES
dc.identifier.doi10.1039/C9NR05662A-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1039/C9NR05662Aes_ES
dc.identifier.e-issn2040-3372-
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderAgencia Estatal de Investigación (España)-
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)es_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderDiputación General de Aragónes_ES
dc.contributor.funderEngineering and Physical Sciences Research Council (UK)es_ES
dc.contributor.funderUniversity of Tikrites_ES
dc.contributor.funderMinistry of Higher Education and Scientific Research (Iraq)es_ES
dc.contributor.funderAgencia Estatal de Investigación (España)es_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100007335es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100011033es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000266es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.contributor.orcidMartín, Santiago [0000-0001-9193-3874]es_ES
dc.contributor.orcidSerrano, José Luis [0000-0001-9866-6633]es_ES
dc.contributor.orcidNichols, Richard J. [0000-0002-1446-8275]es_ES
dc.contributor.orcidLambert, Colin J. [0000-0003-2332-9610]es_ES
dc.contributor.orcidCea, Pilar [0000-0002-4729-9578]es_ES
dc.identifier.pmid31414113-
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
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