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Cluster beams from passivated nanocrystals

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Zeitschrift für Physik D Atoms,Molecules and Clusters

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.

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Authors and Affiliations

  1. Schools of Physics & Chemistry, Georgia Institute of Technology, Atlanta, GA, 30332-0430, USA

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

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  1. I Vezmar
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  2. M.M. Alvarez
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  3. J.T. Khoury
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  4. B.E. Salisbury
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  5. M.N. Shafigullin
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  6. R.L. Whetten
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I, V., Alvarez, M., Khoury, J. et al. Cluster beams from passivated nanocrystals. Z Phys D - Atoms, Molecules and Clusters 40, 147–151 (1997). https://doi.org/10.1007/s004600050180

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  • DOI: https://doi.org/10.1007/s004600050180

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