Nb3TeI7

metal

· Nb3TeI7

Nb₃TeI₇ is a layered metal-halide compound combining niobium, tellurium, and iodine—a family of materials primarily explored in condensed matter physics and materials research rather than established industrial production. This compound is of interest as a potential two-dimensional or quasi-2D material for nanoelectronics and quantum device applications, with research focus on its electronic, mechanical, and exfoliation properties for layered material engineering.

Research and development — layered materials2D nanoelectronics — experimentalQuantum materials — fundamental studyVan der Waals heterostructuresComputational materials screening

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	1,781.4	ksi	DFT
↳	4,394.6	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	97.28	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	1,218.9	ksi	DFT
↳	2,865.9	ksi	DFT · OptB88vdW

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
Density(ρ)	0.2165	lb/in³	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	0.5040	eV	DFT · OptB88vdW
↳	0.6520	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	12.66	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	11.81	-	DFT · OptB88vdW
↳	10.87	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.9433	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.630	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.2530	C/m²	DFT · OptB88vdW
↳	0.2343	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000945	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000179	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-245	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	364.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	21.72	%	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)	0.000400	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5641	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.

Nb3TeI7 — Properties & Data | MatWorld

Nb3TeI7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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