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Germanium Antimony Tellurium (GeSbTe, GST) Evaporation Material

HTEM1436

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Germanium Antimony Tellurium (GeSbTe, GST) Evaporation Material is made of high-purity GeSbTe, which can be used for electron beam and thermal evaporation. The available shapes are pellets and shots. Customized purity and dimensions are available. HM is a leading manufacturer and supplier of various evaporation materials.

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Data sheet

ShapePellet / Wire / Rod / Slug / Tablet / Customized
Purity99.99%

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Germanium Antimony Tellurium (GeSbTe, GST) Evaporation Material Selection Notes

Germanium Antimony Tellurium (GeSbTe, GST) Evaporation Material belongs to the evaporation materials range and is selected for controlled purity, stable evaporation behavior and process-specific material form for vacuum deposition. It is commonly used in thermal evaporation, e-beam evaporation, optical coating, PVD research and thin-film process development as well as thermal evaporation, e-beam evaporation, optical coating, semiconductor research, thin-film deposition and PVD process development. When requesting a quote, confirm purity, material form, piece or granule size, evaporation method, boat or crucible compatibility, packaging and quantity.

Related Materials and Product Forms

For material comparison or adjacent product forms, browse evaporation materials, sputtering targets and deposition materials.

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What evaporation material details are needed for a quote? Please provide purity, required form such as pellets, pieces, granules or shots, size range, evaporation method, boat or crucible compatibility, quantity and packaging needs.

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Germanium Antimony Tellurium Evaporation Material is a key compound used in optical data storage and phase-change memory applications due to its unique ability to switch between amorphous and crystalline states. This chalcogenide alloy—commonly abbreviated as GST—is typically composed of germanium (Ge), antimony (Sb), and tellurium (Te) in specific ratios such as Ge₂Sb₂Te₅, offering fast switching speed, good thermal stability, and excellent data retention. When used in thermal evaporation or e-beam deposition systems, GST provides uniform, high-purity thin films critical for rewritable optical discs, non-volatile memory devices (PCM), and advanced photonic components. Heeger Materials (HM) provides high-quality germanium antimony tellurium evaporation material with controlled composition and consistent performance for demanding vapor deposition processes.

Germanium Antimony Tellurium Evaporation Material Properties

Property

Description/Value

Chemical Formula

GeSbTe (e.g., Ge₂Sb₂Te₅ for GST-225)

Appearance

Grayish metallic solid

Density

~6.3 g/cm³

Melting Point

~600-630°C

Crystallization Temperature

100-150°C

Thermal Conductivity

~0.5-1.0 W/m·K

Electrical Resistivity

Amorphous: ~10⁴-10⁶ Ω·cm; Crystalline: ~10⁻²-10⁻³ Ω·cm

Crystal Structure

Amorphous (as-deposited); Crystalline: FCC or hexagonal

Band Gap

Amorphous: ~0.7 eV; Crystalline: ~0.5 eV (for Ge₂Sb₂Te₅)

Heat of Fusion

~100-150 J/g (approximate)

Specific Heat Capacity

~0.2-0.3 J/g·K (varies with phase)

  • Molecular Formula: GeSbTe
  • Purity: 99.99%, 99.999%
  • Available Product: Evaporation pellets & pieces & powder

Germanium Antimony Tellurium Evaporation Material Packing

Germanium Antimony Tellurium Evaporation Materials from Heeger Materials are protected by protective gas during the packaging process. The evaporation materials are packed in double-vacuum plastic bags and loaded into solid medicinal bottles, improving the stability of the evaporating material. The packaging is not easy to damage or oxidize.

Germanium Antimony Tellurium Evaporation Material Packing

Where to Buy Germanium Antimony Tellurium Evaporation Material in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Evaporation Materials products including Germanium Antimony Tellurium Evaporation Material, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We are a specialized supplier of premium-grade metals, alloys, ceramics, powders, and various other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors. 

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