Glass formation and physical properties of Sb2S3-CuI chalcogenide system*

Novel chalcogenide glasses of pseudo-binary (100 - x)Sb2S3-xCuI systems were synthesized by traditional melt-quenching method. The glass-forming region of Sb2S3-CuI system was determined ranging from x = 30 mol% to 40 mol%. CuI acts as a non-bridging modifier to form appropriate amount of [SbSI] structural units for improving the glass-forming ability of Sb2S3. Particularly, as-prepared glassy sample is able to transmit light beyond 14 mu m, which is the wider transparency region than most sulfide glasses. Their physical properties, including Vickers hardness (H-v), density (rho), and ionic conductivity (sigma) were characterized and analyzed with the compositional-dependent Raman spectra. These experimental results would provide useful knowledge for the development of novel multi-spectral optical materials and glassy electrolytes.

Automated summary

In this study, novel chalcogenide glasses of pseudo-binary (100 - x)Sb2S3-xCuI systems were synthesized using traditional melt-quenching method. It was found that CuI acted as a non-bridging modifier to enhance the glass-forming ability of Sb2S3. The prepared glassy sample exhibited wider transparency region than most sulfide glasses and showed good physical properties.