Germanium metal ingots are bulk materials cast from high-purity germanium raw materials. Typically silver-gray in color with a metallic luster, they appear in ingot form. Their crystal structure can be polycrystalline or monocrystalline, serving as core foundational materials for deep processing in semiconductor, infrared optics, and photovoltaic fields—such as monocrystalline pulling and wafer cutting.
We offer germanium ingots in various specifications and purity grades, with custom options for single-crystal directional growth and specific crystal orientations. Contact us for inquiries.
Ultra-high purity
Single-crystal/polycrystalline forms available
Integrity of crystal structure with minimal defects
Clean surface with thin oxide layer
Customizable dimensions and weights
Infrared Optical Component Substrates: Directly processed into infrared lenses, windows, and prisms through cutting, grinding, and polishing.
Semiconductor Single Crystal Substrates: Used as seed crystals or raw materials for pulling high-purity germanium single crystals required for detector manufacturing.
High-Efficiency Solar Cells: Serves as the germanium substrate for gallium arsenide solar cells, supporting cell structure and conducting electricity.
Alloy Additives: Serves as an alloying element in specialty alloys to enhance specific material properties.
Q1: What does the “N” in germanium ingot denote? How should it be selected?
A1: “N” represents the number of “9s” indicating purity. 4N denotes 99.99%, while 6N denotes 99.9999%. Infrared optics commonly use 5N, while detector single crystals require ultra-high purity 10N or above. Select based on requirements.
Q2: What are the main differences between germanium ingots and silicon ingots?
A2: Germanium ingots feature high electron mobility and excellent infrared transmittance, making them suitable for high-end detection and optics; Silicon ingots are cost-effective with mature manufacturing processes, making them the absolute mainstream for integrated circuits. Their applications are complementary.
Q3: How should germanium ingots be stored?
A3: Germanium ingots are stable at room temperature but require sealing to prevent moisture and avoid impact damage. High-purity ingots should be stored under vacuum or inert gas to prevent gradual surface oxidation.
Q4: What is the minimum order quantity?
A4: We support R&D-level small-batch orders and provide scaled supply. Specific MOQs depend on purity and specifications—please contact us for confirmation.
Each batch is supplied with:
Certificate of Analysis (COA)
Technical Data Sheet (TDS)
Material Safety Data Sheet (MSDS)
Third-party testing reports available upon request
We offer one-stop solutions from high-purity raw materials to customized germanium ingots, serving as your reliable materials partner.
Molecular Formula: Ge
Molecular Weight: 72.63
Appearance: Grayish-white solid with a metallic luster
Density: 5.35 g/cm³
Melting Point: 938.25 °C
Boiling Point: 2833 °C
Crystal Structure: Diamond-type cubic structure, specifically belonging to the face-centered cubic crystal system (space group Fd-3m), lattice constant a ≈ 5.657 Å
Signal Word:
Danger
Hazard Statements:
H228: Flammable solid
Inner Packaging: Double-layer sealed plastic bags or aluminum foil bags for moisture and leakage protection.
Outer Packaging: Iron drum or fiber drum, depending on the weight, with reinforced sealed lid.
Hazard Packaging: UN-certified packaging compliant with regulations for hazardous materials transportation.
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