Raman scattering spectra and structural properties of the chalcogenide glasses SbXAs1?XSI

Determination of AsSI‐SbSI glasses short‐range structure via Raman spectroscopy, XPS and XRD

“…For Sb‐3, a new band emerges near 179 cm −1 which is also present on the spectra of Sb‐4, Sb‐8 and Sb‐11 with a slight shift to lower frequencies and an increase in intensity. The new band is attributed to the Sb‐I vibrations in SbI 3 molecules …”

“…The new band is attributed to the Sb-I vibrations in SbI 3 molecules. 18 The spectra for Sb-13 and Sb-17 differ from that for compositions with lower antimony content due to crystallization of the samples. For Sb-13 and Sb-17, the weak bands at 292 and 369 cm À1 might correspond to Sb-S vibrations in SbS 3 pyramids in either crystalline Sb 2 S 3 14 or vitreous Sb 2 S 3 .…”

“…Several attempts have been made to investigate the short‐range structure of quaternary As‐Sb‐S‐I glasses by Raman spectroscopy . However, in the majority of abovementioned works the quaternary As‐Sb‐S‐I system has been studied along As 2 S 3 ‐SbSI section where the concentration of every element is variable .…”

“…Several attempts have been made to investigate the short-range structure of quaternary As-Sb-S-I glasses by Raman spectroscopy. [14][15][16][17][18] However, in the majority of abovementioned works the quaternary As-Sb-S-I system has been studied along As 2 S 3 -SbSI section where the concentration of every element is variable. [14][15][16][17] Therefore, no satisfactory information concerning the influence of substitution of arsenic by antimony on the short-range structure is provided.…”