Plasmons in supported size-selected silver nanoclusters

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 non...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physical chemistry chemical physics : PCCP 2015-07, Vol.17 (27), p.17541-17544
Hauptverfasser:	Lünskens, Tobias, Heister, Philipp, Thämer, Martin, Walenta, Constantin A, Kartouzian, Aras, Heiz, Ulrich
Format:	Artikel
Sprache:	eng
Schlagworte:	Blue shift Chemistry Clusters Nanostructure Physical chemistry Plasmonics Plasmons Second harmonic generation Silver
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	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.
ISSN:	1463-9076 1463-9084 1463-9084
DOI:	10.1039/c5cp01582k