UV plasmonic behavior of various metal nanoparticles in the near- and far-field regimes: Geometry and substrate effects

Journal Article (Journal Article)

The practical efficacy of technologically promising metals for use in ultraviolet plasmonics (3-6 eV) is assessed by an exhaustive numerical analysis. This begins with estimates of the near- and far-field electromagnetic enhancement factors of isolated hemispherical and spherical metallic nanoparticles deposited on typical dielectric substrates like sapphire, from which the potential of each metal for plasmonic applications may be ascertained. The ultraviolet plasmonic behavior of aluminum, chromium, copper, gallium, indium, magnesium, palladium, platinum, rhodium, ruthenium, titanium, and tungsten was compared with the well-known behavior of gold and silver in the visible. After exploring this behavior for each metal as a function of nanoparticle shape and size, the deleterious effect caused by the metal's native oxide is considered, and the potential for applications such as surface-enhanced Raman spectroscopy, accelerated photodegradation and photocatalysis is addressed. © 2013 American Chemical Society.

Full Text

Duke Authors

Cited Authors

  • Sanz, JM; Ortiz, D; Alcaraz De La Osa, R; Saiz, JM; González, F; Brown, AS; Losurdo, M; Everitt, HO; Moreno, F

Published Date

  • September 26, 2013

Published In

Volume / Issue

  • 117 / 38

Start / End Page

  • 19606 - 19615

Electronic International Standard Serial Number (EISSN)

  • 1932-7455

International Standard Serial Number (ISSN)

  • 1932-7447

Digital Object Identifier (DOI)

  • 10.1021/jp405773p

Citation Source

  • Scopus