Raman spectroscopy and X-ray diffraction studies of (GeS₂)₁₀₀₋x(SbSI)x glasses and composites on their basis

Abstract

The structure and structural changes under the isothermal annealing of (GeS2)100–x(SbSI)x (0 ≤ x ≤ 90) glasses were investigated by Raman spectroscopy and X-ray diffraction methods. The nanoheterogeneous nature of these glasses structure has been revealed. The matrix of (GeS2)100–x(SbSI)x glasses is basically built just of binary GeS4, SbS3 and SbI3 structural groups and contains a small amount of molecular fragments with homopolar Ge  Ge and S S bonds. The phase structure arising in the glass matrix at crystallization corresponds to the structure of crystalline SbSI.