Structural Studies of fluorophosphate Laser Glasses by Solid State NMR
1 : Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
* : Corresponding author
In this presentation, we will report the structure study of BaF2-YF3-Na2O-P2O5-NaF glass system by solid state NMR. Based on 23Na, 31P, and 19F high resolution solid state NMR as well as on 31P/19F and 23Na/19F double resonance results, we develop a quantitative structural description on the atomic scale. 19F NMR results indicate a systematic dependence of the fluoride speciation on the content of YF3. F- ions were transferred from P5+ ions to Ba2+ and Y3+ ions with the increasing of YF3. Both F- and Y3+ ions were homogeneously distributed in the glasses. No nanophase segregation was observed. P5+ ions mainly exist as [PO4]3- groups with minute [PO3F]2- groups.
| Subject : | : | Oral |
| Topics | : | OXYFLUORIDE, OXYNITRIDE GLASSES |
| Keywords | : | fluorophosphate glass ; glass structure ; solid state NMR |
| PDF version | : |  PDF version |
