MSE PRO™ 5N (99.999%) Germanium (Ge) Pieces Evaporation Materials

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^-4Torr 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 catalyst.

Name	Germanium
Symbol	Ge (N-type)
Atomic Number	32
Atomic Weight	72.63
Color/Appearance	Grayish White, Semi-Metallic
Purity	99.999%
Thermal Conductivity	60 W/m.K
Melting Point (°C)	937
Coefficient of Thermal Expansion	6 x 10-6/K
Theoretical Density (g/cm3)	5.32
Thermal Evaporation Techniques	Boat: W, C, Ta Crucible: Graphite, Al₂O₃
E-Beam Crucible Liner Material	Graphite

MSE Supplies offers a variety for crucibles for material evaporations. We can customize the dimensions based on your need.