Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/62632
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Morphological and interaction effects on the surface plasmon resonance of metal nanoparticles |
Autor: | Gonzalo, J. CSIC ORCID; Serna, Rosalía CSIC ORCID ; Solís Céspedes, Javier CSIC ORCID ; Babonneau, D.; Afonso, Carmen N. CSIC | Fecha de publicación: | 2003 | Editor: | Institute of Physics Publishing | Citación: | Journal of Physics Condensed Matter 15: S3001-S3010 (2003) | Resumen: | The influence of the morphology and separation of Ag nanoparticles (NPs) on the position of the surface plasmon resonance has been studied. The NPs have been produced on amorphous a-Al2O3 surfaces by means of alternate pulsed laser deposition in a layered structure. The films finally produced consist of five layers containing the NPs with spacing layers of a-Al2O3, the space between the NPs also being filled-in with a-Al2O3. The in-plane dimensions of the NPs have been varied in the 2-12 nm range while their shape changes from that of spheres to that of oblate ellipsoids. The in-depth separation of the layers containing the NPs was varied in the 8-33 nm range. Above an average in-plane dimension threshold of 4.6 nm, the optical absorption of these nanostructured films exhibits two resonances that shift red and blue in respect to that observed in smaller NPs. The results clearly show that this threshold is well above that at which the NPs become oblate spheroids and it is instead close to the threshold for in-plane coalescence among adjacent NPs. The results also show that multipolar electromagnetic interactions among NPs can be neglected for separations larger than 4.4 ± 0.7 nm but they become important for coalesced NPs. | URI: | http://hdl.handle.net/10261/62632 | DOI: | 10.1088/0953-8984/15/42/002 | Identificadores: | doi: 10.1088/0953-8984/15/42/002 issn: 0953-8984 |
Aparece en las colecciones: | (CFMAC-IO) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Gonzalo.pdf | 167,51 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
40
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
38
checked on 28-feb-2024
Page view(s)
314
checked on 22-abr-2024
Download(s)
238
checked on 22-abr-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.