Synthesis of tin oxide nanosized crystals embedded in silica matrix through sol-gel process using alkoxide precursors

Yu-chun Wu, W. Hamd, E. Thune, A. Boulle, C. Rochas, R. Guinebretière

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18 Citations (Scopus)

Abstract

Materials made of tin oxide nanocrystals homogeneously dispersed into a silica glass matrix have been elaborated through sol-gel processing. Addition of strong acids was used to control the hydrolysis-condensation in tin and silicon alkoxides mixed alcoholic solutions. Fourier transform infrared spectroscopy (FTIR) and Small angle X-ray scattering (SAXS) measurements show that the introduction of HCl allows to synthesize gels containing up to 50% of tin oxide precursor without significant modification of the pure silica gel network. Thermal treatments of slowly dried bulk gels induce the crystallization of tin oxide nanoparticles. After firing at 1000 °C, dense materials containing tin oxide nanocrystals (with a mean diameter close to 1-2 nm) are obtained. The crystal size distribution was estimated by X-ray diffraction line profile analysis. The narrowness of this distribution makes these materials interesting for optical applications.

Original languageEnglish
Pages (from-to)951-959
Number of pages9
JournalJournal of Non-Crystalline Solids
Volume355
Issue number16-17
DOIs
Publication statusPublished - 2009 Jun 15

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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