Cadmium sulfide is widely used in IR optics, polarizers, λ/4 and λ/2 waveplates, beamsplitters, substrates. 

Basic properties

StructureWurtzite (Hexagonal)Density: 4.825 g/ cm3Young’s Modulus:45 GPaCoef. of Thermal Expansion (500 K):α 1=6.26×10-6/K; α 3=3.5×10-6/KSpecific Heat:0.47 J/gKThermal conductivity (at 25 °C):0.2 W/cmKMax. 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 resistivitya). low: < 1 Ohm*cm b). high: > about 10^11 Ohm*cmMax. crystal diameter/length:ø 40×30 mm

CdS Transmission

CdS Optical Transmission

Products

CdS rods, wafers, windows and substrates

Diameter/Width1-38 mmThickness/length0.1-150 mmOrientation(0001), (10-10), (11-20)Surface qualityAs-cut, 80/50, 60/40 per MIL-0-13830

CdS crystal pieces for vapour deposition



Purity99.995%, 99.999%Particle size0.01- 10 mm




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