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Proceedings Paper

Plasmon and compositional mapping of plasmonic nanostructures
Author(s): Emilie Ringe; Sean M. Collins; Christopher J. DeSantis; Sara E Skrabalak; Paul A. Midgley
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Paper Abstract

Recently, co-reduction of Au and Pd has allowed the synthesis of complex Au core/AuPd shell nanoparticles with elongated tips and cubic-like symmetry. Optical studies have shown strong plasmonic behavior and high refractive index sensitivities. In this paper, we describe the composition and the near-field plasmonic behavior of those complex structures. Monochromated STEM-EELS, Cathodoluminescence, and EDS mapping reveals the different resonant modes in these particles, and shows that Pd, a poor plasmonic metal, does not prevent strong resonances and could actually be extremely helpful for plasmon-enhanced catalysis.

Paper Details

Date Published: 13 November 2014
PDF: 10 pages
Proc. SPIE 9278, Plasmonics, 92780J (13 November 2014); doi: 10.1117/12.2073886
Show Author Affiliations
Emilie Ringe, Rice Univ. (United States)
Sean M. Collins, Univ. of Cambridge (United Kingdom)
Christopher J. DeSantis, Indiana Univ. (United States)
Sara E Skrabalak, Indiana Univ. (United States)
Paul A. Midgley, Univ. of Cambridge (United Kingdom)

Published in SPIE Proceedings Vol. 9278:
Xing Zhu; Satoshi Kawata; David J. Bergman; Peter Nordlander; Francisco Javier García de Abajo, Editor(s)

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