Abstract
Six-coordinated silicon [6]Si was observed by Si and P K-edge XAFS measurements in xLi2O-ySiO2-(100-y)P2O5 glasses (x = 25 and 33, y = 40, 45, 50, 55, and 60). Si K-edge EXAFS spectra of the glasses indicated the co-existence of [6]Si and four-coordinated silicon [4]Si. The proportion of octahedral [SiO66-] to [6]Si depends upon the alkali content and the [SiO66-]/[SiO44-] tetrahedral ratios were estimated by Si K-edge XANES spectra. The interatomic distances were 1.88–1.90 Å for Si-O and 1.55–1.61 Å for P-O and the amounts of [SiO66-] were 11.8–46.9%.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
