| Autre titre | From nanoparticle to nanocable : impact of size and geometrical constraints on the optical modes of Si/SiO2 core/shell nanostructures |
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| DOI | Trouver le DOI : https://doi.org/10.1063/1.3237162 |
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| Auteur | Rechercher : Wang, Juan; Rechercher : Wang, Xiao-Jing; Rechercher : Jiao, Yang; Rechercher : Li, Quan; Rechercher : Chu, Ming-Wen; Rechercher : Malac, Marek1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut national de nanotechnologie
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| Format | Texte, Article |
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| Sujet | core diameters; core/shell; electron energy loss spectrum; extinction spectra; geometrical configurations; geometrical constraints; interface plasmons; nano-objects; nanocables; optical modes; spatially resolved; spherical nanoparticles; UV region |
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| Résumé | In the extinction spectra of Si/SiO₂ core/shell nanostructures, peak features in the near UV region (3-5 eV) appear when the nanostructure geometrical configuration changes from spherical nanoparticles to cylindrical nanocables, with the peak features become more intense in the nanocables of smaller core diameter. Similar feature at ∼4.2 eV is also observed in the spatially resolved electron energy loss spectra (SREELS) of individual nanocable, but not in the nanoparticle. The EELS simulations unravel the origin of such excitation as the monopolar interface plasmon in cylindrical nano-objects, being responsible for the observed near UV extinction modes in nanocables. |
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| Date de publication | 2009-09-28 |
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| Maison d’édition | American Institute of Physics |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 19734715 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 00300239-aee5-44e5-b7f3-d098c07c6bea |
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| Enregistrement créé | 2012-03-30 |
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| Enregistrement modifié | 2020-04-16 |
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