Photochromic glasses in the system SrO-ZnO-Al2O3

Jie Fu, Akiyoshi Osaka, Tokuro Nanba, Yoshinari Miura

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Abstract

New aluminate glasses were obtained with the conventional melt-quench technique in the system SrO-ZnO-Al2O3. The glass forming region was determined. The glasses were colorless and had good chemical durability in laboratory conditions. When irradiated with UV-light, a broad adsorption was induced with a peak at 470 nm (2.64 eV) and an ESR signal (77 K and 300 K) was induced with an apparent g-value of 2.006. Both the changes in optical density and the intensity of the ESR signal increased with the ZnO content. From the characteristic of ESR signal, coloring of glass was concluded to be due to the formation of hole trapped on oxygen and electron center resting on zinc ions.

Original languageEnglish
Pages (from-to)99-101
Number of pages3
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume101
Issue number1169
DOIs
Publication statusPublished - Jan 1 1993

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ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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