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Germanium Wafers
IR and Optical Grade Wafers
Applications: Germanium wafers are use in the manufacture of space solar cells, terrestrial solar cells (CPV), sensors, infrared optics, high brightness LEDS, and many other semiconductor applications.
Physical Properties:
Formula: Ge
Molecular Weight: 72.59
Density: 5.323 gm/cc
Melting Point: 936oC
Specific Heat: 310 J/gmK
Thermal Conductivity: 60 W/m.K (300K)
Solubility: Insoluble in Water
Optical Transmission Range: 1.8 – 23 microns
Wavelength in microns Transmission %
2 46
4 46
6 46
8 46
10 46
12 39.5
14 40.5
20 35.5
Resistivity Range: 5 - 40 Ohm cm
Dopants: Undoped, N-Type, Antimony, P-Type, Gallium
Orientations: (100), (111)
Diameters Available: 2 inch (50.8 mm), 3 inch (76.2 mm) and 4 inch (101.6 mm)