Images are for guidance only and might not represent the final product.
Formula: Ge
Form: Foil/Film/Sheet
Material: Germanium
CAS Number: 7440-56-4
Commodity: Metals
Purity: 99.999%
Structure: Polycrystalline
Electrical Type: N-Type
Goodfellow's germanium foil is available with a maximum purity of 99.999% (5N), offering the material's unique semiconductor properties in a versatile foil format. Germanium's high refractive index and excellent infrared transmission make it valuable in optics and photonics. It's widely used in infrared optics, fiber-optic systems, and high-efficiency solar cells. In the electronics industry, germanium foil is crucial for developing high-speed devices and is being explored for use in quantum computing. For research purposes, high-purity germanium foil is essential in studying fundamental semiconductor physics and developing new materials for optoelectronic applications. Its role in advancing technologies like thermal imaging and space-based communications underscores its importance in both scientific exploration and cutting-edge industrial applications.
each

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

Shipping restrictions and charges
may apply for some hazardous materials.

Tolerances

Foil/Film/Sheet
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%

Material Properties for Metals

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 ) 46x10⁶@22@22°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

Can't find what you're looking for? For customized options

Other Customers Purchased
  1. Starting at $673.56

    each
    Discounts applied for volume purchases
    View Product