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Inorganic Materials

, Volume 41, Issue 6, pp 658–665 | Cite as

Formation of Photosensitive Layers in Alkali Germanate Glasses

  • T. V. Bocharova
Article

Abstract

The induced optical absorption spectra of 70GeO2 ⋅ 10Ga2O3 ⋅ 20Li2O glasses are measured. A process is described for producing photosensitive layers on alkali germanate glasses using ion-exchange diffusion from salt melts containing silver nitrate. The effects of the sensitizer (Ce3+, Fe3+, and Fe2+) and preparation, UV irradiation, and heat treatment conditions on the mechanisms of silver reduction in the surface layer of germanate glasses are examined. The results demonstrate that colloidal silver particles can be produced via ion exchange at 350°C in glasses containing 0.1 wt % Fe2O3. The particle diameter in a glass prepared under reducing conditions is estimated at 2.5 nm.

Keywords

Nitrate Heat Treatment Absorption Spectrum Fe2O3 Surface Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • T. V. Bocharova
    • 1
  1. 1.St. Petersburg State Polytechnical UniversitySt. PetersburgRussia

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