Germanium Antimony Tellurium (GeSbTe, GST) Evaporation Material

Data sheet

Shape	Pellet / Wire / Rod / Slug / Tablet / Customized
Purity	99.99%

More info

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.

Inquiry to Heeger Materials

Items marked with an asterisk (*) are required.

Privacy Information:

Heeger Materials respects your privacy, and we will NOT sell or provide your personal data to other third parties, or allow them to use your personal data for their own purposes. However, we would like to send you information from time to time by mail or email about our products and special offers in addition to the interest categories you've selected above. Read our Privacy Policy