TaCu3Te4 — Properties & Data | MatWorld

TaCu3Te4

metal

· TaCu3Te4

TaCu3Te4 is a ternary intermetallic compound combining tantalum, copper, and tellurium—a material class that remains largely experimental and not widely commercialized. Research into tantalum-based chalcogenides (tellurides and selenides) is driven by their potential in thermoelectric energy conversion and semiconducting applications, where the combination of metallic and semiconducting character offers unique electronic properties. This particular composition represents exploratory materials science work; engineers would encounter it primarily in academic research contexts or emerging technologies seeking alternatives to conventional thermoelectrics or functional metallic compounds.

thermoelectric researchexperimental semiconductorsadvanced functional materialshigh-temperature energy conversionintermetallic compound researchmaterials exploration

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	28.54	GPa	DFT
Shear Modulus(G)	19.89	GPa	DFT

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.862	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.308	eV	DFT · OptB88vdW
↳	1.551	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	9.747	-	DFT · OptB88vdW
↳	9.730	-	DFT · PBE
↳	10.40 range 10.22–10.58median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	10.93	-	DFT · OptB88vdW
↳	7.867	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.7800	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.4200	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.1211	C/m²	DFT · OptB88vdW
↳	0.03739	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00177	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00204	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-259.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	238.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	31.66	%	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)	-0.2392	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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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.

TaCu3Te4

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