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Sku SC93-3231_25_G
US-Strem
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Product Information

Product Name
Germanium powder (99.999%)
Brand Name
US-Strem
Product Number
93-3231
CAS
7440-56-4
Certificate of Analysis (COA)​
COA not found

General Information

PubChem CID
6326954
IUPAC Name
germanium
InChI Key
GNPVGFCGXDBREM-UHFFFAOYSA-N
SMILES
Ge

Description

Product Introduction

Germanium Pieces (CAS No. 7440-56-4) are high-purity elemental germanium supplied in piece form for semiconductor, electronic materials, infrared optics, photovoltaic, and advanced materials research.

Germanium is a gray-white metalloid and an important semiconductor material with well-defined electrical and optical properties. Its combination of semiconductor characteristics and infrared transmission makes it valuable for semiconductor research, electronic device development, infrared optical systems, and photovoltaic technologies.

Germanium Pieces are particularly suitable for applications requiring a defined solid material form for materials processing, crystal growth, thin-film deposition, alloy preparation, and semiconductor research.

 

Mechanism / Principle

Semiconductor and Electronic Material Function

Germanium is a Group 14 semiconductor with electronic and optical properties suitable for electronic and optoelectronic applications.

In semiconductor research:

  • Germanium provides a semiconductor platform for electronic devices.
  • Its carrier transport properties support electronic material research.
  • Its infrared optical properties enable infrared-related applications.
  • Germanium can be incorporated into semiconductor structures and heterojunction systems.
  • High-purity germanium helps minimize impurity-related effects during materials processing.

These characteristics make Germanium an important material for semiconductor physics, electronic device development, and infrared optoelectronics.

 

Key Research Applications

1. Semiconductor Materials

Germanium Pieces are used as a source material for semiconductor research and materials processing.

Applications include:

  • Semiconductor material preparation
  • Germanium-based semiconductor structures
  • Crystal growth research
  • Semiconductor characterization
  • Electronic materials development

 

2. Infrared Optical Materials

Germanium is widely studied for infrared optical applications because of its infrared transmission properties.

Applications include:

  • Infrared optical components
  • IR spectroscopy
  • Thermal imaging research
  • Infrared detector development
  • Optical material research

 

3. Photovoltaic Research

Germanium can serve as a substrate or material component in advanced photovoltaic technologies.

Applications include:

  • Multijunction solar cells
  • III-V semiconductor structures
  • Photovoltaic substrates
  • Advanced solar-cell materials
  • Semiconductor heterostructures

 

4. Electronics and Microelectronics

Germanium Pieces can be used as a starting material for advanced electronic material research.

Applications include:

  • Transistor research
  • High-speed electronics
  • Integrated semiconductor devices
  • Germanium-based electronic materials
  • Microelectronic device development

 

5. Materials Science

Germanium Pieces are useful for materials synthesis and processing research.

Applications include:

  • Crystal growth
  • Thin-film deposition
  • Alloy development
  • Nanomaterial preparation
  • Semiconductor interface studies

 

6. Analytical and Calibration Applications

High-purity germanium materials can also support elemental analysis and materials characterization.

Applications include:

  • Trace-element analysis
  • Analytical chemistry
  • Materials characterization
  • Instrument calibration
  • Semiconductor material analysis

 

Advantages

  • High-purity elemental germanium
  • Convenient piece form for materials processing
  • Suitable for semiconductor research
  • Useful for infrared optical applications
  • Suitable for photovoltaic research
  • Applicable to crystal growth and thin-film research
  • Useful for advanced electronic materials
  • Available in high-purity grades

 

Storage & Handling

  • Store in a tightly closed container.
  • Keep in a cool, dry environment.
  • Protect from contamination and unnecessary exposure to moisture.
  • Handle pieces carefully to prevent physical contamination.
  • For high-purity semiconductor applications, avoid contact with dust, oils, and other contaminants.
  • Use appropriate laboratory personal protective equipment.
  • Follow the product-specific SDS and certificate specifications for detailed handling requirements.

 

Research Areas

Researchers working in the following fields may benefit from Germanium Pieces (CAS No. 7440-56-4):

  • Semiconductor research
  • Electronic materials
  • Microelectronics
  • Infrared optics
  • Photovoltaic materials
  • Optoelectronics
  • Materials science
  • Nanotechnology
  • Crystal growth
  • Advanced semiconductor manufacturing

FAQ

Q1: What are Germanium Pieces?

A: Germanium Pieces are elemental germanium (Ge) supplied in solid piece form. The CAS number for elemental germanium is 7440-56-4.

 

Q2: What are Germanium Pieces used for?

A: Germanium Pieces are mainly used in semiconductor research, crystal growth, infrared optics, photovoltaic materials, electronic materials, and advanced materials research.

 

Q3: What is the molecular formula of Germanium Pieces?

A: The chemical formula of elemental germanium is Ge, with an atomic weight of approximately 72.63 g/mol.

 

Q4: Is Germanium a semiconductor?

A: Yes. Germanium is an elemental semiconductor widely studied for electronic and optoelectronic applications.

 

Q5: Why use Germanium Pieces instead of Germanium powder?

A: Piece-form germanium is convenient for applications such as materials processing, crystal growth, alloy preparation, and deposition, where larger solid pieces may be preferred over powder.

 

Q6: What purity is available for Germanium Pieces?

A: Depending on the product grade, Germanium Pieces can be supplied in high-purity grades such as 99.99%, 99.999%, and higher.

 

Q7: What is the melting point of Germanium?

A: Germanium has a melting point of approximately 937°C.

 

Q8: How should Germanium Pieces be stored?

A: Store tightly sealed in a cool, dry environment and protect the material from dust, moisture, and other contaminants.