Collective dipole oscillations in small silver clusters embedded in rare-gas matrices

1993 ◽  
Vol 47 (16) ◽  
pp. 10706-10715 ◽  
Author(s):  
S. Fedrigo ◽  
W. Harbich ◽  
J. Buttet
Keyword(s):  
Rare Gas ◽  
Silver Clusters

ChemInform Abstract: Deposition of Mass Selected Silver Clusters in Rare Gas Matrices.

ChemInform ◽  
2010 ◽  
Vol 22 (17) ◽  
pp. no-no
Author(s):  
W. HARBICH ◽  
S. FEDRIGO ◽  
F. MEYER ◽  
D. M. LINDSAY ◽  
J. LIGNIERES ◽  
...  
Keyword(s):  
Rare Gas ◽  
Silver Clusters

Spectroscopy on rare gas–doped silver clusters in helium droplets

2002 ◽  
Vol 116 (8) ◽  
pp. 3263-3269 ◽  
Author(s):  
Thomas Diederich ◽  
Josef Tiggesbäumker ◽  
Karl-Heinz Meiwes-Broer
Keyword(s):  
Rare Gas ◽  
Silver Clusters ◽  
Helium Droplets

MEDIA EFFECTS ON THE OPTICAL ABSORPTION SPECTRA OF SILVER CLUSTERS EMBEDDED IN RARE GAS MATRICES

1992 ◽  
Vol 06 (23n24) ◽  
pp. 3767-3771 ◽  
Author(s):  
S. Fedrigo ◽  
W. Harbich ◽  
J. Buttet
Keyword(s):  
Optical Absorption ◽  
Gas Phase ◽  
Absorption Spectra ◽  
Cluster Size ◽  
Small Mass ◽  
Rare Gas ◽  
Silver Clusters ◽  
Optical Absorption Spectra ◽  
Main Structure ◽  
The Matrix

The optical absorption of small mass selected Agn -clusters (n=7, 11, 15, 21) embedded in solid Ar, Kr and Xe has been measured. The absorption spectra show 1 to 3 major peaks between 3 and 4.5 eV, depending on the cluster size. Changing the matrix gas Ar→Kr→Xe induces a redshift which is comparable for all sizes studied and does not affect the main structure of the absorption spectra. We propose a scheme to estimate the gas phase value of the absorption energies which is in fair agreement with an estimation obtained by a simple model based on a Drude metal.

Deposition of mass selected silver clusters in rare gas matrices

1990 ◽  
Vol 93 (12) ◽  
pp. 8535-8543 ◽  
Author(s):  
W. Harbich ◽  
S. Fedrigo ◽  
F. Meyer ◽  
D. M. Lindsay ◽  
J. Lignieres ◽  
...  
Keyword(s):  
Rare Gas ◽  
Silver Clusters

Fluorescence spectroscopy of silver clusters formed in rare gas droplets

2001 ◽  
Vol 16 (1) ◽  
pp. 157-160 ◽  
Author(s):  
D. Ievlev ◽  
I. Rabin ◽  
W. Schulze ◽  
G. Ertl
Keyword(s):  
Fluorescence Spectroscopy ◽  
Rare Gas ◽  
Silver Clusters

Production and STEM examination of controlled-size silver clusters

1983 ◽  
Vol 41 ◽  
pp. 338-339
Author(s):  
M. A. Listvan ◽  
R. P. Andres
Keyword(s):  
Cluster Size ◽  
Metal Clusters ◽  
Experimental Parameter ◽  
Carbon Films ◽  
Metal Species ◽  
Silver Clusters ◽  
Free Jet ◽  
Size Dependent ◽  
Cluster Properties ◽  
Controllable Size

Knowledge of the function and structure of small metal clusters is one goal of research in catalysis. One important experimental parameter is cluster size. Ideally, one would like to produce metal clusters of regulated size in order to characterize size-dependent cluster properties.A source has been developed which is capable of producing microscopic metal clusters of controllable size (in the range 5-500 atoms) This source, the Multiple Expansion Cluster Source, with a Free Jet Deceleration Filter (MECS/FJDF) operates as follows. The bulk metal is heated in an oven to give controlled concentrations of monomer and dimer which were expanded sonically. These metal species were quenched and condensed in He and filtered to produce areosol particles of a controlled size as verified by mass spectrometer measurements. The clusters were caught on pre-mounted, clean carbon films. The grids were then transferred in air for microscopic examination. MECS/FJDF was used to produce two different sizes of silver clusters for this study: nominally Ag6 and Ag50.

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