Correlation between physical and structural properties of Co2+ doped mixed alkali zinc borate glasses

Anomalies of some physical properties and electrochemical performance of lithium–lead–germanate glasses

“…Some authors consider the bands situated at about 879 cm −1 and 887 cm −1 attributed to non-bridging oxygen ions [23]. In our case, the intensity of these bands decreases with the increase of lithium ions content up to 40 mol%.…”

Mixed alkali effect in physical and optical properties of Li2O–Na2O–WO3–B2O3 glasses

“…In the present glass system, the refractive index varies from 1.644 to 1.652, and it varies nonlinearly, indicating the presence of mixed alkali effect. Similar mixed alkali effect in refractive index was observed in mixed alkali zinc borate glasses doped with cobalt [46].…”

Optical absorption and structural studies of bismuth borate glasses containing Er3+ ions

“…The strongest absorption bands of the borate glass located in the range of 1260 to 1540 cm −1 are usually attributed to B\O symmetric stretching of [BO 3 ] group. The absorption bands that lie in the range from 900 to 1120 cm −1 are assigned to B\O stretching of [BO 4 ] units and overlapping with vibrations of NBOs in BO 4 units [43]. The infrared spectra showed that the addition of Bi 2 O 3 that causes a broad absorption band arises in the region from 850 to 1100 cm −1 .…”