Ta3TeI7 — Properties & Data | MatWorld

Ta3TeI7

ceramic

· JVASP-5632· Ta3TeI7

Ta3TeI7 is a layered ternary ceramic compound combining tantalum, tellurium, and iodine—a research-phase material belonging to the family of mixed-halide and chalcogenide ceramics. While not yet established in mainstream industrial production, this compound is of interest in materials science for its potential in applications requiring layered crystal structures with tunable electronic and thermal properties, positioning it as an exploratory candidate for next-generation functional ceramics where alternative materials may prove insufficient.

Layered semiconductor researchThermal barrier coatings (exploratory)Electronic device packagingExfoliable ceramic materialsHigh-density structural ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	32.13	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	94.75	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	21.04	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.247	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	0.5290	eV	DFT · OptB88vdW
↳	0.8090	eV	DFT · TBmBJ
↳	1.200	eV	DFT · HSE06
Dielectric Constant (Relative Permittivity)(εr)	11.22	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	10.66	-	DFT · OptB88vdW
↳	8.985	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.2466	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00118	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000204	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-234.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	389	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	26.47	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4629	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.

Ta3TeI7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental