Plasmons in supported size-selected silver nanoclusters

被引：49

作者：

Luenskens, Tobias ^{[1
]}

Heister, Philipp ^{[1
]}

Thaemer, Martin ^{[2
]}

Walenta, Constantin A. ^{[1
]}

Kartouzian, Aras ^{[1
]}

Heiz, Ulrich ^{[1
]}

机构：

[1] Tech Univ Munich, Dept Phys Chem, Catalysis Res Ctr, D-85748 Garching, Germany

[2] Univ Chicago, Chicago, IL 60637 USA

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2015年 / 17卷 / 27期

基金：

欧洲研究理事会;

关键词：

OPTICAL-ABSORPTION SPECTRA; CLUSTERS; SPECTROSCOPY; NANOPARTICLES; GENERATION; DISPERSION; RESONANCE; OXIDATION; SHIFT;

D O I：

10.1039/c5cp01582k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 similar to 0.2 eV in the plasmon resonance is observed with decreasing cluster size from Ag-55 to Ag-9. 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.

引用

页码：17541 / 17544

页数：4

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