Abstract

This paper presents the experimental results of synthesizing silver nanoparticles in the near-surface layers of glasses by heat treatment in water vapor. It is shown that the presence of a cracked layer on the glass surface has a substantial effect on the shape of the silver nanoparticles, and this manifests itself in the absorption spectra of the glasses. It is established that, when silver is introduced by thermal diffusion from a film, the silver nanoparticles have the shape of oblate ellipsoids in nanocracks and on the glass surface, whereas they acquire a spherical shape in the volume of the glass. It is shown that, when silver is introduced into glass by ion exchange and the glass is later heat-treated in water vapor, part of the silver emerges onto the glass surface, forming a structured film.

© 2013 Optical Society of America

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