Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/94938
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dc.contributor.authorEl-Sayed, A.-
dc.contributor.authorBorghetti, Patrizia-
dc.contributor.authorGoiri, Elizabeth-
dc.contributor.authorRogero, Celia-
dc.contributor.authorFloreano, Luca-
dc.contributor.authorLovat, Giacomo-
dc.contributor.authorMowbray, Duncan J.-
dc.contributor.authorCabellos, José Luis-
dc.contributor.authorWakayama, Yutaka-
dc.contributor.authorRubio, Angel-
dc.contributor.authorOrtega, J. Enrique-
dc.contributor.authorOteyza, D. G. de-
dc.date.accessioned2014-04-04T08:08:56Z-
dc.date.available2014-04-04T08:08:56Z-
dc.date.issued2013-
dc.identifierdoi: 10.1021/nn4020888-
dc.identifierissn: 1936-0851-
dc.identifiere-issn: 1936-086X-
dc.identifier.citationACS Nano 7(8): 6914-6920 (2013)-
dc.identifier.urihttp://hdl.handle.net/10261/94938-
dc.description.abstractThe molecule/metal interface is the key element in charge injection devices. It can be generally defined by a monolayer-thick blend of donor and/or acceptor molecules in contact with a metal surface. Energy barriers for electron and hole injection are determined by the offset from HOMO (highest occupied) and LUMO (lowest unoccupied) molecular levels of this contact layer with respect to the Fermi level of the metal electrode. However, the HOMO and LUMO alignment is not easy to elucidate in complex multicomponent, molecule/metal systems. We demonstrate that core-level photoemission from donor-acceptor/metal interfaces can be used to straightforwardly and transparently assess molecular-level alignment. Systematic experiments in a variety of systems show characteristic binding energy shifts in core levels as a function of molecular donor/acceptor ratio, irrespective of the molecule or the metal. Such shifts reveal how the level alignment at the molecule/metal interface varies as a function of the donor-acceptor stoichiometry in the contact blend. © 2013 American Chemical Society.-
dc.description.sponsorshipThis work was supported by the Spanish MICINN (MAT2010-21156-C03-01 and -C03-03), the Basque Government (IT-621-13 and -578-13), European Research Council Advanced Grant DYNamo (ERC-2010-AdG Proposal No. 267374), and Spanish Grants FIS2010-21282-C02-01 and PIB2010US-00652. J.L.C. acknowledges financial support from the Mexican CONACyT program, D.J.M. from the Spanish “Juan de la Cierva” program (JCI-2010-08156), and D.G.O. from the European Union under FP7-PEOPLE-2010-IOF-271909.-
dc.publisherAmerican Chemical Society-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/267374-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/271909-
dc.rightsclosedAccess-
dc.subjectXPS-
dc.subjectMolecular blends-
dc.subjectVacuum-level pinning-
dc.subjectFermi-level pinning-
dc.subjectEnergy-level alignment-
dc.subjectMetal−organic interfaces-
dc.titleUnderstanding energy-level alignment in donor-acceptor/metal interfaces from core-level shifts-
dc.typeartículo-
dc.identifier.doi10.1021/nn4020888-
dc.date.updated2014-04-04T08:08:56Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.contributor.funderMinisterio de Ciencia e Innovación (España)-
dc.contributor.funderEusko Jaurlaritza-
dc.contributor.funderEuropean Commission-
dc.contributor.funderEuropean Research Council-
dc.contributor.funderConsejo Nacional de Ciencia y Tecnología (México)-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100004837es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000781es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003141es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003086es_ES
item.fulltextNo Fulltext-
item.openairetypeartículo-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
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