Self-assembly of gold nanocrystals into discrete coupled plasmonic structures

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dc.contributor.authorSchopf, Carola
dc.contributor.authorNoonan, Ethel
dc.contributor.authorQuinn, Aidan J.
dc.contributor.authorIacopino, Daniela
dc.contributor.funderSeventh Framework Programmeen
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2016-11-17T10:12:02Z
dc.date.available2016-11-17T10:12:02Z
dc.date.issued2016-09-14
dc.description.abstractDevelopment of methodologies for the controlled chemical assembly of nanoparticles into plasmonic molecules of predictable spatial geometry is vital in order to harness novel properties arising from the combination of the individual components constituting the resulting superstructures. This paper presents a route for fabrication of gold plasmonic structures of controlled stoichiometry obtained by the use of a di-rhenium thio-isocyanide complex as linker molecule for gold nanocrystals. Correlated scanning electron microscopy (SEM)—dark-field spectroscopy was used to characterize obtained discrete monomer, dimer and trimer plasmonic molecules. Polarization-dependent scattering spectra of dimer structures showed highly polarized scattering response, due to their highly asymmetric D∞h geometry. In contrast, some trimer structures displayed symmetric geometry (D3h), which showed small polarization dependent response. Theoretical calculations were used to further understand and attribute the origin of plasmonic bands arising during linker-induced formation of plasmonic molecules. Theoretical data matched well with experimentally calculated data. These results confirm that obtained gold superstructures possess properties which are a combination of the properties arising from single components and can, therefore, be classified as plasmonic moleculesen
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSchopf, C., E. Noonan, A. Quinn and D. Iacopino (2016) Self-Assembly of Gold Nanocrystals into Discrete Coupled Plasmonic Structures', Crystals 6(9): 117 (10 pp). doi: 10.3390/cryst6090117en
dc.identifier.doi10.3390/cryst6090117
dc.identifier.endpage117-10en
dc.identifier.issn2073-4352
dc.identifier.issued9en
dc.identifier.journaltitleCrystalsen
dc.identifier.startpage117-1en
dc.identifier.urihttps://hdl.handle.net/10468/3279
dc.identifier.volume6en
dc.language.isoenen
dc.publisherMDPIen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP1::NMP/213382/EU/Multi-scale Formation of Functional Nanocrystal-Molecule Assemblies and Architectures/FUNMOLen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP1::NMP/263091/EU/Hybrid Molecule-Nanocrystal Assemblies for Photonic and Electronic Sensing Applications/HYSENSen
dc.rights© 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectPlasmonicsen
dc.subjectGold nanocrystalsen
dc.subjectSelf-assemblyen
dc.subjectPlasmonic moleculesen
dc.subjectCoupled structuresen
dc.titleSelf-assembly of gold nanocrystals into discrete coupled plasmonic structuresen
dc.typeArticle (peer-reviewed)en
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