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Germanium Evaporation Material (Ge)

Germanium Evaporation Material (Ge)
Material Type Germanium
Symbol Ge (N-type)
Atomic Weight 72.63
Atomic Number 32
Color/Appearance Grayish White, Semi-Metallic
Thermal Conductivity 60 W/m.K
Melting Point (°C) 937
Bulk Resistivity 5-40 ohm-cm
Coefficient of Thermal Expansion 6 x 10-6/K
Theoretical Density (g/cc) 5.32
Dopant Antimony
Z Ratio 0.516
E-Beam Excellent
Thermal Evaporation Techniques Boat:  W, C, Ta
Crucible:  Q, Al2O3
E-Beam Crucible Liner Material
 
Fabmate®, Graphite
Temp. (°C) for Given Vap. Press. (Torr) 10-8:  812
10-6:  957
10-4:  1,167
Comments Excellent films from E-beam.

General

Germanium is a hard and brittle material with a semi-metallic, grayish-white appearance. It has a density of 5.35 g/cc, a melting point of 937°C, and a vapor pressure of 10-4 Torr at 1,167°C. It is classified on the periodic table as a metalloid, which means it possesses properties of metals and non-metals. Like silicon, germanium is a semiconductor and frequently utilized in the fabrication of transistors and integrated circuits. It is often evaporated under vacuum to create layers in the production of optical storage media and optical coatings. Other uses of the material are as an alloying agent and catal

Material Notes

AEM Deposition provides Germanium pieces, and Germanium powder for sale, purity is 99.999%.

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