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 | Cadmium sulfide is widely used in IR optics, polarizers, λ/4 and λ/2 waveplates, beamsplitters, substrates. |
| Structure | Wurtzite (Hexagonal) | | Density: | 4.825 g/ cm3 | | Young’s Modulus: | 45 GPa | | Coef. of Thermal Expansion (500 K): | α 1=6.26×10-6/K;
α 3=3.5×10-6/K | | Specific Heat: | 0.47 J/gK | | Thermal conductivity (at 25 °C): | 0.2 W/cmK | | Max. Transmittance (λ =2.5-15 μm): | ≥ 71 % | | Absorption Coef. (λ =10.6 μm): | ≤ 0.007 cm-1 (including 2 surfaces) | | Refractive index (λ =10.6 μm): | 2.2245 (no), 2.2376 (ne) | | Specific resistivity | a). low: < 1 Ohm*cm
b). high: > about 10^11 Ohm*cm | | Max. crystal diameter/length: | ø 40×30 mm |
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CdS rods, wafers, windows and substrates |
| Diameter/Width | 1-38 mm | | Thickness/length | 0.1-150 mm | | Orientation | (0001), (10-10), (11-20) | | Surface quality | As-cut, 80/50, 60/40 per MIL-0-13830 |
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CdS crystal pieces for vapour deposition |
| Purity | 99.995%, 99.999% | | Particle size | 0.01- 10 mm |
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