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Reduced Symmetry Metallodielectric Nanoparticles: Chemical Synthesis and Plasmonic Properties

Charnay, Clarence, Lee, Allen, Man, Shi-Qing, Moran, Cristin E., Radloff, Corey, Bradley, R. Kelley, Halas, Naomi J.·2003·The Journal of Physical Chemistry B

Abstract

We report a general chemical strategy for producing reduced-symmetry metallodielectric nanoparticles, nanocups, and nanocaps that combines nanoscale masking techniques and nanoparticle-seeded electroless plating. Using this approach, silica nanoparticles with a gold cup-shaped shell and, alternatively, a gold cap, are obtained. The plasmon response of both nanostructures is a sensitive function of orientation of the nanostructure with respect to the direction and polarization of incident light. This orientation dependence is examined experimentally by studying the extinction spectra of oriented nanocups and nanocaps on transparent substrates, and is also evaluated theoretically using a three-dimensional finite difference time domain (FDTD) method.

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Authors
Charnay, C., Lee, A., Man, S.-Q., Moran, C. E., Radloff, C., Bradley, R. K., & Halas, N. J.
Venue
The Journal of Physical Chemistry B
Published
2003-06-17
Volume
107
Issue
30
Pages
7327-7333
ISSN
  • 1520-5207 (ISSN-L)
  • 1520-6106
OpenAlex
W2088944951
Cited by
174
References
0
FWCI
8.57
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.