Photosensitivity in Antimony Based Glasses
Abstract
New glass forming systems based on Sb2O3-SbPO4 has been explored, These glasses present higher thermal stability against devitrification and higher refractive index than chalcogenide glasses. Under irradiation, using Ar-laser 350nm wavelength and 50 mW power density, change on the coloration is observed. Structural and electronic modifications around Sb cations induced by such treatment have been characterized by XANES measurements at the L-Sb edges. On the one hand, XANES spectra, at the L1 edge, show a decrease of the coordination number for Sb atoms induced by exposure to light indicating a breaking of Sb-O bonds in the glassy network. On the other hand, XANES spectra, at the L1 edge, suggest a change in the oxidation state of Sb atoms.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2001
- Accession Number
- ADP011559
Entities
People
- M. Nalin
- M. Poulani
- S. J. Ribeiro
- V. Briois
- Y. Messaddeq
Organizations
- University of Paris