Ge4 Te4

semiconductor

· Ge4 Te4

Ge₄Te₄ is a germanium-tellurium compound semiconductor belonging to the chalcogenide family, which combines group IV and group VI elements to create materials with tunable electronic properties. This composition represents a research material primarily studied for phase-change memory applications and thermal energy harvesting, where its reversible crystalline-to-amorphous transitions enable data storage and its thermoelectric characteristics support waste heat recovery. While not yet widely deployed in mainstream commercial products, germanium-tellurium compounds are attracting engineering interest as alternatives to established phase-change materials (like GST alloys) due to their potentially improved switching speeds and thermal stability in next-generation nonvolatile memory devices.

phase-change memory devicesthermoelectric energy conversioninfrared opticsthermal management coatingsresearch semiconductorshigh-speed switching applications

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	49.00	GPa	—
Shear Modulus(G)	44.94	GPa	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.06240	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.09200	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Ge4 Te4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control