DSC and spectroscopic studies of the structure of V2O5-CdO-P2O5 glasses

作者：Kerkouri N^*; Et Tabirou M; Chahine A; Mazzah A; Dhamelincourt M C; Taibi M

来源：Journal of Optoelectronics and Advanced Materials, 2010, 12(5): 1030-1034.

• Glasses
• V2O5-CdO-P2O5
• DSC
• Infrared spectroscopy
• Raman spectroscopy

xV(2)O(5)-(50-x)CdO-50P(2)O(5) (0 <= x <= 50 mol%) glasses were prepared and investigated using DSC, IR spectroscopy and Raman spectroscopy. For low concentrations of V2O5 (x <= 20 mol %), the formation of P-O-V bonds increases the cross-link strength of the glass network and leads to increased T-g. For x > 20 mol%, the infrared and Raman spectra show that the vanadium-oxygen structural units formed in the glasses are VO5 and VO4 groups forming chains with V-O-V bridges. The formation of the weaker V-O-V bonds compared with the stronger P-O-P bonds leads to decreased T-g.

• 出版日期2010-5