Ge5Te8As2

Name: Ge5Te8As2
Brand: MatWorld

ceramic

· Ge5Te8As2

Ge5Te8As2 is a chalcogenide ceramic compound belonging to the germanium-tellurium-arsenic family, a class of materials studied for their unique layered crystal structures and tunable electronic properties. This composition represents research-stage materials with potential applications in phase-change memory, thermal management devices, and infrared optics, where the combination of these heavy elements provides interesting optical and thermal characteristics. The material's relatively low exfoliation energy suggests potential for producing two-dimensional nanostructures, making it of interest to researchers exploring next-generation thermoelectric, optoelectronic, and quantum device platforms.

phase-change memory devicesinfrared optical windowsthermoelectric applicationstwo-dimensional nanostructure researchthermal interface materialsquantum device platforms

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Exfoliation Energy(Eexf)	27.17	meV/atom	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2198	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	Measured
↳	0.2870	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	78.42	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.04667	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.04333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00211	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00365	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-269.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	238.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01500	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.06234	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Ge5Te8As2 — Properties & Data | MatWorld

Ge5Te8As2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental