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Germanium Crystal Sheet (Ge Sheet)

Catalog No.ME32C-6N
Purity> 99.9999%
CAS Number10038-98-9
Crystal StructureSingle Crystal & Polycrystalline
Conductive TypeN-type

Stanford Advanced Materials (SAM) produces high quality Germanium Crystal Sheet with theoretical transmittance and homogeneity of refractive index. Blanks, windows, lenses and prisms are all available with the diameter up to 300 mm for monocrystal and 380 mm for polycrystal. So just provide us your required specification.

Other Germanium products: Germanium Powder, Germanium Metal.

More details

Germanium Crystal Sheet Introduction:

We provide Germanium Crystal Sheet which can be used as windows, lenses, prisms, etc. for infrared detection and imaging systems. Infrared single crystal germanium is widely used in 2um to 20um infrared optics and laser systems. In addition, single crystal germanium has a good transmittance within the infrared and far-infrared bands.

Germanium single crystal growth 

Germanium single crystal growth

Now the company has a single crystal furnace, with an annual output of 25 tons of germanium single crystal, 5 tons of silicon single crystal. Using advanced equipment at home and abroad, and decades of crystal preparation technology, with its own district in molten germanium ingots as raw materials, production: electronic grade germanium single crystal: resistivity range 0.25 to 50 ohm cm, the resistivity uniformity <15%, crystal to the (111), crystal orientation deviation < Shan'xi, dislocation density, 1000 ~ 3500 / L.
Minority carrier lifetime >150. Germanium single crystal is mainly used in the production of germanium transistor, because the electron and hole transfer rate of germanium is higher than that in high speed switching circuit.

Ge crystal sheet

Specifications of SAM Germanium Crystal Sheet:

   Material description

Processing parameter

Purity

> 99.9999%

Diameter

Ф5-Ф300mm (single crystal)

/Ф5-Ф380mm(polycrystalline)

Crystal structure

single crystal & polycrystalline

Plainness

20μm

Conductive type

N-type

Vertical degree

﹤5̊

Crystal orientation

<111>

Chamfering

0.2 ~ 1mm

Resistivity (provide germanium with lower resistivity according to the customer needs)

5-40 Ohm-cm

Broken edge

≤0.5mm

ETV

≤0.05mm

Tolerance

diameter:+/- 0.025mm

length and width:+/- 0.05 ~ +/-0.1mm

thickness:+/- 0.025mm

Surface quality

Plain slice: slice

spherical surface:D25 ~ D76

polishing window: according to customers' needs

We also provide tailor-made Infrared germanium windows.

Packaging of SAM Germanium Crystal Sheet:

Our germanium crystal sheet is clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused during storage or transportation.



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