Abstract: The structure of the binary (100-x)Bi₂O₃· xLi₂O glass was investigated by Raman
scattering and X-ray photoelectron spectroscopies. Their O1s binding energies of X-ray photoelectron spectroscopy were lower than that of
non-bridging oxygen of alkali silicate glass, and it shifted to higher binding energy with increasing Li₂O content. The main Raman
peak shifted to higher wave number and the Raman bands at lower wave numbers disappeared with increasing Li₂O content, which was interpreted
that the distortion of network-forming BiO_x(x=5 or 6)structural unit was increased with increasing Li₂O content.

Key words: glass structure, Raman scattering spectrum, X-ray photoelectron spectrum