Fluorescence spectroscopy of silver clusters formed in rare gas droplets |
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Authors: | D Ievlev I Rabin W Schulze G Ertl |
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Institution: | (1) Fritz-Haber-Institute der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany, DE |
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Abstract: | The Pick Up technique allows continuous formation of high density metal cluster beams in the otherwise hardly accessible size
range Me2 to about Me50. With an apparatus based on the use of cryo-condensation pumps, Ar as inert gas for production of the host clusters by adiabatic
expansion and silver as metal we demonstrate how the various source parameters influence the composition and mean size of
the resulting cluster distributions. The analysis in the gas phase by means fluorescence spectroscopy allows to conclude that
an Ar shell encapsulates the metal clusters.
Received 30 November 2000 |
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Keywords: | PACS 36 40 Vz Optical properties of clusters – 39 10 +j Atomic and molecular beam sources and techniques |
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