Journal of Colloid and Interface Science 461 (2016) 376–382 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Controlling optical properties of metallic multi-shell nanoparticles through suppressed surface plasmon resonance a a a a,b,⇑ Jesus A. I. Acapulco Jr. , Soonchang Hong , Seong Kyu Kim , Sungho Park Department of Chemistry, Sungkyunkwan University, Suwon 440-746, South Korea Department of Energy Science, Sungkyunkwan University, Suwon 440-746, South Korea graphical a bstract ar ti c l e i nf o ab stra ct Article history: Herein, we report the surface plasmon resonance of plasmonic multi-shell nanoparticles compared to Received 15 April 2015 bimetallic Ag/Au hollow nanospheres of similar ﬁnal size, shape, and percent composition. The surface Revised 27 August 2015 plasmon resonance of solid and hollow nanoparticles exhibited a quadrupole mode that was particularly Accepted 16 September 2015 prominent around the 100 nm size regime, while multi-shell nanoparticles did not show a quadrupole Available online 18 September 2015 mode at a similar size. In the latter case, the quadrupole mode of the outermost nanoshell was suppressed by the dipole modes of the inner shells, and the suppression of the quadrupole mode was Keywords: not affected
Journal of Colloid and Interface Science – Elsevier
Published: Jan 1, 2016
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