Optics and Spectroscopy

, Volume 106, Issue 5, pp 697–700 | Cite as

Optical manifestations of self-diffusion of atoms over the surfaces of silver nanoparticles

  • T. A. Vartanyan
  • N. B. Leonov
  • S. G. Przhibel’skiĭ
  • V. V. Khromov
Condensed-Matter Spectroscopy


The kinetics of the extinction spectrum of a thin island silver film heated in the temperature range 473–553 K is studied experimentally. The observed variations in the inhomogeneously broadened extinction spectrum are related to two types of changes in the morphology of islands, namely, (i) coalescence and fragmentation of the islands at the initial stage and (ii) subsequent rounding of individual islands. This conclusion is supported by the data of electron microscopy of the film at different stages of its heating. The long duration of the relaxation process is explained by specific features of mass transfer over the surfaces of granulated nanoparticles.

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • T. A. Vartanyan
    • 1
  • N. B. Leonov
    • 1
  • S. G. Przhibel’skiĭ
    • 1
  • V. V. Khromov
    • 1
  1. 1.St. Petersburg State University of Information Technologies, Mechanics and OpticsSt. PetersburgRussia

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