Plasmons in supported size-selected silver nanoclusters

Tobias Lünskens, Philipp Heister, Martin Thämer, Constantin A. Walenta, Aras Kartouzian, Ulrich Heiz

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

The plasmonic behavior of size-selected supported silver clusters is studied by surface second harmonic generation spectroscopy for the first time. A blue shift of ∼0.2 eV in the plasmon resonance is observed with decreasing cluster size from Ag55 to Ag9. In addition to the general blue shift, a nonscalable size-dependence is also observed in plasmonic behavior of Ag nanoclusters, which is attributed to varying structural properties of the clusters. The results are in quantitative agreement with a hybrid theoretical model based on Mie theory and the existing DFT calculations.

Original languageEnglish
Pages (from-to)17541-17544
Number of pages4
JournalPhysical Chemistry Chemical Physics
Volume17
Issue number27
DOIs
StatePublished - 21 Jul 2015
Externally publishedYes

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