Issue 27, 2015
From the journal:

Physical Chemistry Chemical Physics

Plasmons in supported size-selected silver nanoclusters†

Tobias Lünskens,‡a   Philipp Heister,‡a   Martin Thämer,b   Constantin A. Walenta,a   Aras Kartouzian*a  and  Ulrich Heiza  

* Corresponding authors

a Technische Universität München, Department of Physical Chemistry, Catalysis Research Center, Lichtenbergstr. 4, 85748 Garching, Germany
E-mail: aras.kartouzian@mytum.de

b University of Chicago, 929 E. 57th Street, GCIS E 001A, Chicago, USA

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.

Graphical abstract: Plasmons in supported size-selected silver nanoclusters

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Article information

DOI
https://doi.org/10.1039/C5CP01582K
Article type
Communication
Submitted
18 Mar 2015
Accepted
12 May 2015
First published
19 May 2015
This article is Open Access
Creative Commons BY-NC license

Phys. Chem. Chem. Phys., 2015,17, 17541-17544

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Plasmons in supported size-selected silver nanoclusters

T. Lünskens, P. Heister, M. Thämer, C. A. Walenta, A. Kartouzian and U. Heiz, Phys. Chem. Chem. Phys., 2015, 17, 17541 DOI: 10.1039/C5CP01582K

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