Ge Substrates for Research and Production

university wafer substrates

Ge Wafers for Depositing Thin Films

A PhD candidate requested the following quote:

We need 5 pieces of Ge wafer (diameter:25.4mm,thickness:1000um) as the depositing substrate. The thermal properties (not the electrical ones) will be concerned.

Reference #109541  for specs and pricing.

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What Thin Ge Wafers Should I Use for my Research?

A graduate student requested the following quote:

Do you have any Ge wafer? especially thin wafer? Would you please send a list?

Thin Germanium (Ge) substrates are used in a variety of applications due to their unique material properties, including their high refractive index, high carrier mobility, and compatibility with silicon technology. Here are some of the key applications:

  1. Photovoltaic Cells : Germanium substrates are used in the production of high-efficiency solar cells, particularly in multi-junction solar cells, where they serve as the bottom layer to absorb the lower-energy infrared part of the solar spectrum.

  2. Infrared Optics : Due to its high refractive index and transparency in the infrared spectrum, thin Ge substrates are used in the manufacture of optical components such as lenses, windows, and mirrors for infrared cameras, sensors, and night vision systems.

  3. Integrated Photonics : Germanium is used in silicon photonics for the fabrication of photodetectors and ge photodiodemodulators. Its ability to be epitaxially grown on silicon wafers and its compatibility with electronic-photonic integrated circuits make it valuable for telecommunications and data communications.

  4. High-Speed Electronics : The high carrier mobility of germanium makes it suitable for high-speed transistors and other electronic components. It is used in applications requiring fast signal processing, such as in radio frequency (RF) components.

  5. Quantum Computing : Thin Ge substrates can be used in the development of qubits for quantum computing. Germanium's material properties are conducive to hosting quantum dots, which are critical for quantum bit (qubit) formation.

  6. Detector Technology : Germanium is used in gamma-ray detectors and X-ray detectors due to its good atomic number and density, which provide high efficiency for radiation detection.

These applications leverage the unique optical, electronic, and material properties of germanium, making thin Ge substrates critical components in advanced technology fields.