Cluster beams from passivated nanocrystals

I. Vezmar, M. M. Alvarez, J. T. Khoury, B. E. Salisbury, M. N. Shafigullin, R. L. Whetten

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Stable, intense beams of large metal clusters (from 102 to 103 Au or Ag atoms) can be produced by laser desorption of molecular films of passivated nanocrystals that have undergone fractionation by size and a separate structural characterization. The mass onset of the desorbed species corresponds directly to the dimensions of the nanocrystal core, indicating that only the surfactant shell is lost during desorption. Photofragmentation, photoionization, and photodetachment from beams of large metal clusters, generated in this way, have all been observed.

Original languageEnglish (US)
Pages (from-to)147-151
Number of pages5
JournalZeitschrift fur Physik D-Atoms Molecules and Clusters
Volume40
Issue number1
DOIs
StatePublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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