FeTeAs — Properties & Data | MatWorld

FeTeAs

metal

· JVASP-62988· FeTeAs

FeTeAs is an iron-tellurium-arsenic intermetallic compound belonging to the metal chalcogenide family. This is a research-phase material primarily investigated for thermoelectric and semiconductor applications rather than structural engineering. The compound is notable for its potential in solid-state energy conversion and electronic devices, though it remains largely experimental with limited commercial deployment compared to established alternatives like bismuth telluride or lead telluride thermoelectrics.

thermoelectric devicessolid-state cooling/power generationsemiconductor researchmaterials researchexperimental phase materials

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2811	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.6100	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	27.76	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.6533	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.050	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00173	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000846	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-275.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	411.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	11.55	%	DFT · TBmBJ

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2522	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

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FeTeAs

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