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 μm, which is the wider transparency region than most sulfide glasses. Their physical properties, including Vickers hardness (H_v), density (ρ), and ionic conductivity (σ) 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. [ABSTRACT FROM AUTHOR]