Germanium Monocrystalline
| Product | Germanium Monocrystalline (Ge Monocrystalline) |
| Form | Crystal, single crystal, single chip |
| Part Number | GE-03 |
| CAS Number | 7440-56-4 |
Germanium monocrystalline has a bright silver gray and cylindrical crystal appearance. It is a periodic table IV group element and semiconductor. It has covalent bonding and a diamond structure, hard but fragile. High-purity germanium single crystal has high refractive index, transparent to infrared ray but not to visible light or ultraviolet ray.
Germanium single crystal doped with a small amount of specific impurities can be used to make various transistors, rectifiers and other devices.
Germanium single crystal is prepared by CZ method or VGF method with zone melting germanium ingot as raw material.
NC Elements is a professional supplier of high-purity germanium single crystal. Please contact us for more details. Get a Quote Now! For other semiconductor materials, please check our Semiconductor Materials catalog page.
Typical Applications:
Germanium single crystal is the first generation transistor material. High purity germanium single crystal has high refractive index and is transparent to infrared light but opaque to visible light and ultraviolet light. It can be used as a germanium window, prism or lens for infrared light transmission. The infrared night vision instrument and other military observation instruments also use pure germanium to make lenses.
Typical Specification
| Conductive type | Doped | Resistivity ρ (23+/-0.5 °C) Ω · cm |
| P Type | Ga | 0.001-45 |
| In | 0.001-45 | |
| Au + Ga (In) | 0.5-5 | |
| N Type | Sb | 0.001-45 |
| Undoped | 35-45 |
Typical Dimensions
| Spec. | Tolerance | ||
| Diameter (mm) | <300 | +/-0.05 | |
| Thickness (mm) | 0.4-50 | +/-0.05 | |
| Parallelism (mm) | D≤100 | ≤0.02 | / |
| D≥100 | ≤0.03 | / | |
| Roundness (mm) | D≤100 | ≤0.02 | / |
| D≥100 | ≤0.03 | / | |
| Bevel Dimension (mm) | 0.2-0.8 | +/-0.1 | |
| Bevel Angle (°) | 45° or 30° | +/-5° | |
| Surface Roughness RA/µm | ＜1 | / | |
| * Only for the application of infrared optical components* | |||
Order Information
Inquiries and orders should include the following information:
- Quantity
- Purity
Packing and Storage
Standard Packing: Each ingot (or piece) is sealed in a polyethylene film bag and then put into a polystyrene box. Carton boxes are used as outer packaging.
