Reaction kinetics of oxygen-deficient centers with diffusing oxygen molecules in silica glass

Hiroshi Imagawa, Takehiko Arai, Hideo Hosono, Hiroaki Imai, Kazuo Arai

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The decay kinetics of the 7.6 eV optical absorption band of hydroxy-free silica glasses during heating in oxygen gas flow was determined. It was found that annihilation of oxygen-deficient centers, ODC(I)s, agrees with the tarnishing reaction model. The absorption cross-section of that center, σ, was determined to be 7.8 ± 0.5 × 10-17 cm2. This value is close to 7.5 × 10-17 cm2 which was previously determined spectroscopically by hydrogen-gas treatment of oxygen-deficient silica glass.

Original languageEnglish
Pages (from-to)70-74
Number of pages5
JournalJournal of Non-Crystalline Solids
Volume179
Issue numberC
DOIs
Publication statusPublished - 1994 Nov 4

ASJC Scopus subject areas

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

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