Sodium chloride substrate is also known as NaCl substrate. Sodium Chloride Substrate is a wide-band good conductor engaged for research work. It also used in the production of infrared spectroscopy analyzer; ultraviolet and infrared optical components; the single crystal is the material of visual elements used as the transparent material of prisms, lenses, filters and various laser windows, infrared devices, optical, laser crystal instruments.
NaCl single crystal substrates are most suitable for growing epitaxial film and studying interface diffusion and defects. The film can be easily removed from NaCl substrate either by floating it off on water or by dissolving the underlying substrate. Sodium chloride crystal substrates can grow epitaxial films on a featureless substrate. If using appropriate techniques, ultra-smooth polishing substrate can be created and high-quality epitaxial film in a larger area can be achieved. As NaCl is very sensitive to moisture, it is advised to store it in desiccator box.
Parameter
| Orientation | <100>, <110>, <111> |
| Orientation Tolerance | < 0.5° |
| Parallelism | 5〞 |
| Perpendicularity | 3ˊ |
| Surface Quality | 10-5 (Scratch/Dig) |
| Wavefront Distortion | <λ/4@632 nm |
| Surface Flatness | <λ/8 @632 nm |
| Clear Aperture | >90% |
| Chamfer | <0.1×45° |
| Thickness/Diameter Tolerance | ±0.05 mm |
| Crystal Structure | Cubic |
| Symmetry Class | m3m |
| Lattice Constants | 5.642 |
| Specific mass | 2.16 g/cm3 |
| Melting Point | 801°C |
| Cleavability | (100), perfect |
| Thermal Conductivity /(W·m-1·K-1@35°C) | 6.15 |
| Specific Heat (J·kg-1·K-1) | 871 |
| Thermal Expansion(10-6·K-1@60°C) | 36.4 …40.8 |
| Hardness (Mohs) | 3 |
| Vickers Microhardness(GPa) | 0.2 |
| Constant of Elastic Compliance(10-12·Pa-1) | S11=22.85, S12=-4.69, S44=78.34 |
| Young Modulus (GPa) | 43.7@<100>, 32.7@<111> |
| Shear Modulus (GPa) | 15.9@<100>, 12.8@<111> |
| Transmission Range | 0.25 … 22.0µm |
| Refractive Index | 1.4906@10.6µm |
| Thermo-optic Coefficient(10-6·K-1@60°C,3.4µm) | -0.331 … -0.373 |
| Poisson Ratio | 0.203 |
| λ(μm) | n | λ(μm) | n | λ(μm) | n |
| 0.2 | 1.7899 | 5 | 1.5185 | 11 | 1.4878 |
| 0.5 | 1.5516 | 6 | 1.5153 | 12 | 1.48 |
| 1 | 1.532 | 7 | 1.5112 | 12.5 | 1.4758 |
| 2 | 1.5254 | 8 | 1.5066 | 15 | 1.4403 |
| 3 | 1.5242 | 9 | 1.5009 | 20 | 1.3822 |
| 4 | 1.5217 | 10 | 1.4947 | 30 | 1.0912 |
- Wide-band good conductor
- Water-soluble, easy to deliquesce and cannot be chemically polished
- Can grow epitaxial films on a featureless substrate
- Substrate for Epitaxial growth
- Be used in the production of infrared spectroscopy analyzer
- Ultraviolet and infrared optical components
- Prisms, lenses, filters and various laser windows, infrared devices, optical, laser crystal instruments
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