GeBi4Te7

ceramic

· JVASP-13043· GeBi4Te7

GeBi₄Te₇ is a quaternary chalcogenide ceramic compound belonging to the family of germanium-bismuth tellurides, materials primarily investigated for thermoelectric and phase-change applications. This material exists primarily in research and development contexts rather than established industrial production, with potential relevance to solid-state cooling systems, thermal energy harvesting, and memory storage technologies where the combination of germanium, bismuth, and tellurium provides tunable electronic and thermal transport properties.

thermoelectric devicesphase-change memorysolid-state coolingthermal energy harvestingresearch materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.266	kg/m³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)	0.5380	eV	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	-227	µV/K	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00490	eV/atom	—
Formation Energy(ΔHf)	-0.2125	eV/atom	—

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

Regulatory Screening

Environmental

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.

GeBi4Te7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental