Journal of Cluster Science

, Volume 13, Issue 2, pp 189–197

Structural Instabilities in Passivated Gold Nanoclusters Induced by Electron Irradiation

  • J. A. Ascencio
  • M. Mendoza
  • T. Santamaria
  • M. Perez
  • I. Nava
  • C. Gutierrez-Wing
  • M. Jose-Yacaman
Article

DOI: 10.1023/A:1015543901226

Cite this article as:
Ascencio, J.A., Mendoza, M., Santamaria, T. et al. Journal of Cluster Science (2002) 13: 189. doi:10.1023/A:1015543901226

Abstract

In the new nanotechnology devices design, the stability of the systems is very important, in the present work we report evidences of internal and external changes of nanoparticles passivated by thiol molecules when they are irradiated under a high flux of an electron beam in the transmission electron microscope. High Resolution images were digitized and processed in order to identify the contrast changes produced by the atomic inside the nanoparticles. Fcc and decahedral nanoparticles cases are shown. Molecular dynamics calculations are also included in order to compare the experimental evidences with the cluster conditions of stabilities. Both theoretical and experimental results imply the occurrence of atomic and twining movements, and indicate that the n-alkyl thiol molecules prevent atomic movement and changes on the particle structure are not observed.

nanoparticles structure decahedral clusters structural fluctuations 

Copyright information

© Plenum Publishing Corporation 2002

Authors and Affiliations

  • J. A. Ascencio
    • 1
  • M. Mendoza
    • 2
  • T. Santamaria
    • 2
  • M. Perez
    • 2
  • I. Nava
    • 2
  • C. Gutierrez-Wing
    • 2
  • M. Jose-Yacaman
    • 3
    • 4
  1. 1.Programa DuctosInstituto Mexicano del PetroleoMexico
  2. 2.Instituto Nacional de Investigaciones NuclearesOcoyoacac, EdoMex., Mexico
  3. 3.Department of Chemical Engineering and Texas Materials InstituteThe University of Texas at AustinAustin
  4. 4.Instituto de FisicaUniversidad Nacional Autonoma de Mexico, ApdoDelegacion Alvaro ObregonMexico, D.F., Mexico

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