HREELS studies of gold nanoparticles with dialkyl sulphide ligands

Chen, Y. and Palmer, R.E. and Shelley, E.J. and Preece, J.A. (2002) HREELS studies of gold nanoparticles with dialkyl sulphide ligands. Surface Science, 502-503. pp. 208-213. ISSN 0039-6028 (https://doi.org/10.1016/S0039-6028(01)01934-3)

Abstract

We have employed high resolution electron energy loss spectroscopy (HREELS) to study low energy electron impact on films of gold nanoparticles passivated with dialkyl sulphide (H21C10SC10H21). HREEL spectra obtained in UHV show energy loss peaks due to CHx and CC vibrational modes of the organic ligands together with a mode at 230 cm(-1) assigned to the Au-S stretch. Measurements as a function of impact energy reveal resonances in the intensities centred between 9 and 12 eV. Prolonged exposure of the film to an electron beam at 50 eV, with a dosage of approximately 360 muC cm(-2) causes significant changes in the HREEL spectra. consistent with cleavage of the Au-S bond.

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• Item metadata

  Item type:	Article
  ID code:	35428
  Dates:	Date Event 10 April 2002 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	04 Nov 2011 15:08
  Last modified:	11 Nov 2024 09:58
  URI:	https://strathprints.strath.ac.uk/id/eprint/35428