BaAl2Te4 — Properties & Data | MatWorld

BaAl2Te4

Name: BaAl2Te4
Brand: MatWorld

metal

· JVASP-12921· BaAl2Te4

BaAl₂Te₄ is a ternary intermetallic compound combining barium, aluminum, and tellurium—a material class that bridges metallic and semiconducting behavior. This compound is primarily of research and development interest rather than established industrial production; it belongs to a family of complex metal tellurides being investigated for thermoelectric applications and solid-state electronics where the interplay of metal atoms can create favorable electronic and thermal transport properties.

thermoelectric devices (research)semiconductor researchsolid-state physics experimentationthermal energy conversionmaterials discovery and screening

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	25.47	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	14.84	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.669	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.609	eV	DFT · OptB88vdW
↳	2.107	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.506	-	DFT · OptB88vdW
↳	6.438	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.3500	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.113	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000942	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00186	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-111.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	300.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	20.69	%	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)	-0.9559	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

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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.

BaAl2Te4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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