Hollow metal nanostructures for enhanced plasmonics

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	Genç, Aziz	-
dc.contributor.author	Patarroyo, Javier	-
dc.contributor.author	Sancho-Parramon, Jordi	-
dc.contributor.author	González, Edgar	-
dc.contributor.author	Bastús, Neus G.	-
dc.contributor.author	Dunin-Borkowski, Rafal E.	-
dc.contributor.author	Puntes, Víctor F.	-
dc.contributor.author	Arbiol, Jordi	-
dc.date.accessioned	2018-02-20T11:08:43Z	-
dc.date.available	2018-02-20T11:08:43Z	-
dc.date.issued	2016	-
dc.identifier.uri	http://hdl.handle.net/10261/161003	-
dc.description	Trabajo presentado al SPIE Photonics West, celebrado en San Francisco, California (USA) del 13 al 18 de febrero de 2016.-- et al.	-
dc.description.abstract	Complex metal nanoparticles offer a great playground for plasmonic nanoengineering, where it is possible to cover plasmon resonances from ultraviolet to near infrared by modifying the morphologies from solid nanocubes to nanoframes, multiwalled hollow nanoboxes or even nanotubes with hybrid (alternating solid and hollow) structures. We experimentally show that structural modifications, i.e. void size and final morphology, are the dominant determinants for the final plasmonic properties, while compositional variations allow us to get a fine tuning. EELS mappings of localized surface plasmon resonances (LSPRs) reveal an enhanced plasmon field inside the voids of hollow AuAg nanostructures along with a more homogeneous distributions of the plasmon fields around the nanostructures. With the present methodology and the appropriate samples we are able to compare the effects of hybridization at the nanoscale in hollow nanostructures. Boundary element method (BEM) simulations also reveal the effects of structural nanoengineering on plasmonic properties of hollow metal nanostructures. Possibility of tuning the LSPR properties of hollow metal nanostructures in a wide range of energy by modifying the void size/shell thickness is shown by BEM simulations, which reveals that void size is the dominant factor for tuning the LSPRs. As a proof of concept for enhanced plasmonic properties, we show effective label free sensing of bovine serum albumin (BSA) with some of our hollow nanostructures. In addition, the different plasmonic modes observed have also been studied and mapped in 3D.	-
dc.publisher	CSIC-ICN Centro de Investigación en Nanociencia y Nanotecnología (CIN2)	-
dc.rights	openAccess	-
dc.title	Hollow metal nanostructures for enhanced plasmonics	-
dc.type	presentación	-
dc.date.updated	2018-02-20T11:08:43Z	-
dc.description.version	Peer Reviewed	-
dc.language.rfc3066	eng	-
dc.relation.csic	Sí	-
item.cerifentitytype	Publications	-
item.grantfulltext	open	-
item.openairecristype	http://purl.org/coar/resource_type/c_18cf	-
item.fulltext	With Fulltext	-
item.openairetype	presentación	-
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