Images are for guidance only and might not represent the final product.

Germanium Pellets

Available Configurations

Properties common to all products in this list

Composition: Ge Form: Pellet/Lump Material: Germanium CAS Number: 7440-56-4 Commodity: Metals Purity: 99.999% Structure: Polycrystalline
Germanium Pellets are ultra-high-purity, solid semiconductor feedstock known for their excellent infrared transmission, high refractive index, and superior carrier mobility. Produced in spherical or near-spherical form for uniform melting and dosing, they serve as a critical material in infrared optics, high-speed electronics, and fiber-optic systems. Industries employ germanium pellets in IR imaging lenses, semiconductor wafers, and photodetectors. Specific uses include precision-shaped pellets for controlled doping in crystal growth, high-density feed in zone refining for electronics-grade germanium, and spherical particle fabrication via pulsed orifice ejection for semiconductor processing. In research, germanium pellets are pivotal for advancing IR spectroscopy, photovoltaic development, and nanostructured semiconductor devices, ensuring consistent quality and performance in both industrial manufacturing and experimental innovation.
Starting at $325.00 each
No Minimum order Free technical support *Free delivery worldwide

Material Properties

Atomic Properties
Element Value
Atomic number 32
Crystal structure Diamond
Electronic structure Ar 3d¹⁰ 4s² 4p²
Valences shown 2,4
Atomic weight( amu ) 72.59
Thermal neutron absorption cross-section( Barns ) 2.3
Photo-electric work function( eV ) 4.8
Natural isotope distribution( Mass No./% ) 72/ 27.4
Natural isotope distribution( Mass No./% ) 73/ 7.8
Natural isotope distribution( Mass No./% ) 76/ 7.8
Natural isotope distribution( Mass No./% ) 70/ 20.5
Natural isotope distribution( Mass No./% ) 74/ 36.5
Atomic radius - Goldschmidt( nm ) 0.139
Ionisation potential( No./eV ) 4/ 45.7
Ionisation potential( No./eV ) 3/ 34.22
Ionisation potential( No./eV ) 1/ 7.90
Ionisation potential( No./eV ) 5/ 93.5
Ionisation potential( No./eV ) 2/ 15.93
Mechanical Properties
Element Value
Hardness - Mohs 6.25
Material condition Polycrystalline
Poisson's ratio 0.32
Bulk modulus( GPa ) 73.9
Tensile modulus( GPa ) 79.9
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 46x10⁶22°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 33.9
Physical Properties
Element Value
Boiling point( C ) 2830
Density( gcm⁻³ ) 5.32@20°C
Thermal Properties
Element Value
Melting point( C ) 937.4
Latent heat of evaporation( J g⁻¹ ) 4516
Latent heat of fusion( J g⁻¹ ) 465
Specific heat( J K⁻¹ kg⁻¹ ) 322@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 60.2@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 5.75@0-100°C
each

Choose Your Options

Close

Available Configurations

Properties common to all products in this list

Composition: Ge Form: Pellet/Lump Material: Germanium CAS Number: 7440-56-4 Commodity: Metals Purity: 99.999% Structure: Polycrystalline

We are collecting your products, please wait!...

Shipping restrictions and charges may apply for some hazardous materials.

Tolerances

Pellet/Lump
Maximum Lump Size Nominal