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Melt quenching technique was used to prepare (30-x)Li 2 O–xNa 2 O–40B 2 O 3 –30GeO 2  glasses (x = 0, 5, 10, 20 &amp; 30 mol %). The room temperature infrared spectra of the powdered glass samples were recorded in the range of 400–2000cm −1 . Raman measurements were performed in the range of 200–2000cm −1  at room temperature. Raman and Infrared spectroscopy was utilized for structural study of this glass system. Specific modes of vibration and peak position were identified from de-convolution of infrared and Raman spectra using Gaussian fitting. Ge–O–Ge bonds’ symmetrical stretching vibrations related to 3 members GeO 4  rings were allotted to the IR band of 483 cm −1 . The strongest Raman band was allotted to symmetrical stretching vibrations of Ge–O in GeO 4  having one non-bridging oxygen with 3 bridging oxygens at 797 cm −1 . The observed Raman and IR spectra of various specimens are utilized here to explain the structural characteristics of current glass.

Utilization of infrared, Raman spectroscopy for structural analysis of alkali boro-germanate glasses