Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/56897
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Quantitative modelling of the surface plasmon resonances of metal nanoclusters sandwiched between dielectric layers: The influence of nanocluster size, shape and organization |
Autor: | Toudert, Johann CSIC ORCID; Babonneau, D.; Simonot, L.; Camelio, S.; Girardeau, T. | Fecha de publicación: | 2008 | Editor: | Institute of Physics Publishing | Citación: | Nanotechnology 19: 125709 (2008) | Resumen: | The effects of size, shape and organization on the surface plasmon resonances of Ag nanoclusters sandwiched between Si3N4 layers are studied by transmission electron microscopy and anisotropic spectroscopic ellipsometry. We present an easy-to-handle model that quantitatively links the nanostructure and optical response of the films, which are considered as dielectric/metal:dielectric/dielectric trilayers, with the central nanocomposite layer being an effective medium whose optical properties are described by an anisotropic dielectric tensor. The components of this tensor are calculated using a generalization of the Yamaguchi theory taking into account the real organization, size and shape distributions of ellipsoidal nanoclusters, whose electronic properties are assumed to reflect shape-dependent finite size effects. Using this model, it is shown that the optical response of the films in the visible range is dominated by the excitation of the surface plasmon resonance of the clusters along their in-plane long axis, while no surface plasmon resonance resulting from an excitation along their in-plane short axis can be observed due to damping effects. Moreover, the spectral position of this resonance appears to be mainly affected by the average shape of the clusters, and weakly by their size, their shape distribution and the electromagnetic interaction between them. © IOP Publishing Ltd. | URI: | http://hdl.handle.net/10261/56897 | DOI: | 10.1088/0957-4484/19/12/125709 | Identificadores: | doi: 10.1088/0957-4484/19/12/125709 issn: 0957-4484 |
Aparece en las colecciones: | (CFMAC-IO) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
45
checked on 02-may-2024
WEB OF SCIENCETM
Citations
41
checked on 24-feb-2024
Page view(s)
332
checked on 05-may-2024
Download(s)
117
checked on 05-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.