| Alternative title | 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 | Resolve DOI: https://doi.org/10.1063/1.3237162 |
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| Author | Search for: Wang, Juan; Search for: Wang, Xiao-Jing; Search for: Jiao, Yang; Search for: Li, Quan; Search for: Chu, Ming-Wen; Search for: Malac, Marek1 |
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| Affiliation | - National Research Council of Canada. National Institute for Nanotechnology
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| Format | Text, Article |
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| Subject | 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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| Abstract | 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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| Publication date | 2009-09-28 |
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| Publisher | American Institute of Physics |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 19734715 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 00300239-aee5-44e5-b7f3-d098c07c6bea |
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| Record created | 2012-03-30 |
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| Record modified | 2020-04-16 |
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