研究目的
Investigating the influence of selenium on the physical and chemical properties of As–S–Se–I glasses to design glasses with desired properties for use in mid-IR LEDs lenses and optical adhesives.
研究成果
The introduction of selenium into AsSI glass shifts the absorption edge to the long-wavelength region and decreases glass solubility in water. Glasses with 40–60 mol % Se are promising for use as lenses for IR diodes and optical adhesives due to their higher crystallization stability and strength.
研究不足
The study is limited to the analysis of (As33S33I33)1-xSex glasses and does not explore other compositions or the long-term stability of these glasses under operational conditions.
1：Experimental Design and Method Selection:
The study involved synthesizing (As33S33I33)1-xSex glasses and analyzing their properties through differential thermal analysis, ultrasonic measurements, and dilatometric measurements.
2：Sample Selection and Data Sources:
Glasses were synthesized from high purity elements As, Se, S, and I.
3：List of Experimental Equipment and Materials:
Equipment included VLR-200g-M lever scales for density measurement, Termoscan-2 for DTA, WinTADill 1080 for thermal expansion curves, UD-12 for sound waves transmission speed, Bruker SENTERRA Dispersive Raman Microscope for Raman spectra, and LEKI SS2109UV for absorption edge determination.
4：Experimental Procedures and Operational Workflow:
Synthesis was performed in evacuated silica tubes, followed by slow cooling. Properties were measured using the specified equipment.
5：Data Analysis Methods:
Data analysis included calculating density, thermal expansion coefficients, and mechanical characteristics from experimental data.
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