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dc.contributor.authorManjavacas, Alejandro-
dc.contributor.authorMarchesin, Federico-
dc.contributor.authorThongrattanasiri, S.-
dc.contributor.authorKoval, P.-
dc.contributor.authorNordlander, Peter-
dc.contributor.authorSánchez-Portal, Daniel-
dc.contributor.authorGarcía de Abajo, Francisco Javier-
dc.date.accessioned2014-09-16T10:45:47Z-
dc.date.available2014-09-16T10:45:47Z-
dc.date.issued2013-
dc.identifierdoi: 10.1021/nn4006297-
dc.identifierissn: 1936-0851-
dc.identifiere-issn: 1936-086X-
dc.identifier.citationACS Nano 7(4): 3635-3643 (2013)-
dc.identifier.urihttp://hdl.handle.net/10261/102121-
dc.description.abstractWe show that chemically synthesized polycyclic aromatic hydrocarbons (PAHs) exhibit molecular plasmon resonances that are remarkably sensitive to the net charge state of the molecule and the atomic structure of the edges. These molecules can be regarded as nanometer-sized forms of graphene, from which they inherit their high electrical tunability. Specifically, the addition or removal of a single electron switches on/off these molecular plasmons. Our first-principles time-dependent density-functional theory (TDDFT) calculations are in good agreement with a simpler tight-binding approach that can be easily extended to much larger systems. These fundamental insights enable the development of novel plasmonic devices based upon chemically available molecules, which, unlike colloidal or lithographic nanostructures, are free from structural imperfections. We further show a strong interaction between plasmons in neighboring molecules, quantified in significant energy shifts and field enhancement, and enabling molecular-based plasmonic designs. Our findings suggest new paradigms for electro-optical modulation and switching, single-electron detection, and sensing using individual molecules. © 2013 American Chemical Society.-
dc.description.sponsorshipThis work has been supported in part by the Spanish MICINN (MAT2010-14885, FIS2010-19609-C02-00, and Consolider NanoLight.es), the European Commission (FP7-ICT-2009-4-248909-LIMA and FP7-ICT-2009-4-248855-N4E), and the Etortek program. A.M. acknowledges financial support through FPU from the Spanish MEC. P.K. aknowledges support from the CSIC JAE-doc program, cofinanced by the European Science Foundation. P.N. acknowledges support from the Robert A. Welch Foundation (C-1222) and the Office of Naval Research (N00014-10-1-0989).-
dc.publisherAmerican Chemical Society-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/248909-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/248855-
dc.rightsclosedAccess-
dc.subjectTDDFT-
dc.subjectNanophotonics-
dc.subjectGraphene plasmons-
dc.subjectMolecular plasmonics-
dc.subjectPolycyclic aromatic hydrocarbons-
dc.subjectPlasmonics-
dc.titleTunable molecular plasmons in polycyclic aromatic hydrocarbons-
dc.typeartículo-
dc.identifier.doi10.1021/nn4006297-
dc.date.updated2014-09-16T10:45:47Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.contributor.funderMinisterio de Ciencia e Innovación (España)-
dc.contributor.funderEuropean Commission-
dc.contributor.funderUniversidad del País Vasco-
dc.contributor.funderMinisterio de Educación y Ciencia (España)-
dc.contributor.funderConsejo Superior de Investigaciones Científicas (España)-
dc.contributor.funderEuropean Science Foundation-
dc.contributor.funderWelch Foundation-
dc.contributor.funderOffice of Naval Research (US)-
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/10.13039/501100003339es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000782es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/100000006es_ES
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