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http://hdl.handle.net/10261/102760
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dc.contributor.author | Tserkezis, Christos | - |
dc.contributor.author | Taylor, Richard W. | - |
dc.contributor.author | Beitner, Jan | - |
dc.contributor.author | Esteban, Ruben | - |
dc.contributor.author | Baumberg, Jeremy J. | - |
dc.contributor.author | Aizpurua, Javier | - |
dc.date.accessioned | 2014-10-01T09:09:39Z | - |
dc.date.available | 2014-10-01T09:09:39Z | - |
dc.date.issued | 2014 | - |
dc.identifier | doi: 10.1002/ppsc.201300287 | - |
dc.identifier | issn: 0934-0866 | - |
dc.identifier | e-issn: 1521-4117 | - |
dc.identifier.citation | Particle and Particle Systems Characterization 31(1): 152-160 (2014) | - |
dc.identifier.uri | http://hdl.handle.net/10261/102760 | - |
dc.description.abstract | The optical response of metallic nanoparticle heteroaggregates with well-defined, subnanometric interparticle gaps is studied both theoretically and experimentally for clusters formed by nanoparticles of different size and/or different material (Au and Ag). The optical spectra of the aggregates can be understood in terms of excitation of chain-like plasmon modes, which are associated with short and long linear chains that constitute the cluster internally. The dependence of the optical properties of the aggregates on the size of the metallic nanoparticles, the interparticle gaps, and the dielectric environment is revealed in model electromagnetic calculations. A rigid molecular linker, cucurbit[5]uril, is used to experimentally form Au heteroaggregates of different sized particles, as well as heteroaggregates of silver and gold. It is shown that in both types of heteroaggregates, the ratio of the two different nanoparticles provides a versatile and easily controllable way to tailor the dominant long-wavelength chain mode. Experimental tracing of the optical response of such heteroaggregates in time during aggregation supports the formation of long-wavelength modes, which can be attributed to excitation of long chains inside the clusters. Metallic nanoparticle heteroaggregates with subnanometric interparticle gaps are theoretically and experimentally studied. Two-component heteroaggregates composed of two different particle sizes or materials are designed, and their far- and near-field optical properties are analyzed in terms of excitation of modes associated with nanoparticle chains within the heteroclusters. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | - |
dc.description.sponsorship | We acknowledge funding from ETORTEK project “nanoiker” from the Department of Industry of the Government of the Basque Country, Ministry of Science and Education, project FIS2010–19609-C02–01, Department of Education of the Basque Government, project IT756–13 of consolidated groups of the UPV/EHU, and EPSRC EP/F059396/1, EP/G060649/1, EU NanoSci-E+ CUBiHOLE, and ERC LINASS 320503 grants. | - |
dc.publisher | Wiley-VCH | - |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/320503 | - |
dc.rights | closedAccess | - |
dc.subject | Metallic nanoparticle aggregates | - |
dc.subject | Subnanometric gaps | - |
dc.subject | Plasmonics | - |
dc.subject | Cucurbiturils | - |
dc.subject | Optical response | - |
dc.title | Optical response of metallic nanoparticle heteroaggregates with subnanometric gaps | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1002/ppsc.201300287 | - |
dc.date.updated | 2014-10-01T09:09:39Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | Engineering and Physical Sciences Research Council (UK) | - |
dc.contributor.funder | Eusko Jaurlaritza | - |
dc.contributor.funder | Eusko Jaurlaritza | - |
dc.contributor.funder | European Research Council | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.contributor.funder | European Commission | - |
dc.contributor.funder | Universidad del País Vasco | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000266 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000781 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000780 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003086 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | No Fulltext | - |
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