Research Article

Spectroscopic and Physical Properties of B i 2 O 3 - B 2 O 3 -ZnO- L i 2 O Glasses

Table 2

Raman band assignments of the present glasses.

Peak position (cm−1)Raman assignments

~130[BiO3] and [BiO6] groups
~254ZnO4 groups
~390Bi–O–Bi vibrations of [BiO6] octahedral units
~555Bi–O of [BiO6] groups
~927Isolated orthoborate group
~1234Stretching of the terminal B–O bonds of pyroborate units