English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/102355
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Controlling subnanometer gaps in plasmonic dimers using graphene

AuthorsMertens, Jan; Tserkezis, C.; Aizpurua, Javier ; Ferrari, A. C.; Baumberg, Jeremy J.
KeywordsGraphene
Dimer
Localized plasmons
Nanoparticle
Field enhancement
Issue Date2013
PublisherAmerican Chemical Society
CitationNano Letters 13(11): 5033-5038 (2013)
AbstractGraphene is used as the thinnest possible spacer between gold nanoparticles and a gold substrate. This creates a robust, repeatable, and stable subnanometer gap for massive plasmonic field enhancements. White light spectroscopy of single 80 nm gold nanoparticles reveals plasmonic coupling between the particle and its image within the gold substrate. While for a single graphene layer, spectral doublets from coupled dimer modes are observed shifted into the near-infrared, these disappear for increasing numbers of layers. These doublets arise from charger-transfer-sensitive gap plasmons, allowing optical measurement to access out-of-plane conductivity in such layered systems. Gating the graphene can thus directly produce plasmon tuning. © 2013 American Chemical Society.
URIhttp://hdl.handle.net/10261/102355
DOI10.1021/nl4018463
Identifiersdoi: 10.1021/nl4018463
issn: 1530-6984
e-issn: 1530-6992
Appears in Collections:(CFM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.