Nb3Sb2Te5 — Properties & Data | MatWorld

Nb3Sb2Te5

metal

· Nb3Sb2Te5

Nb3Sb2Te5 is an intermetallic compound combining niobium, antimony, and tellurium—a research-phase material investigated primarily for its thermoelectric and electronic transport properties. This ternary system belongs to the family of complex metal chalcogenides and is not yet established in mainstream industrial production. The material is of interest to researchers exploring advanced thermoelectric generators, semiconductor devices, and potentially topological electronic applications, though current development remains largely confined to laboratory and computational materials science studies.

thermoelectric researchexperimental semiconductorscomputational materials studieshigh-entropy intermetallicssolid-state physics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.818	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	0.9900	eV	DFT · OptB88vdW
↳	1.052	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	26.96	-	DFT · OptB88vdW
↳	25.41 range 23.70–27.11median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	23.93	-	DFT · OptB88vdW
↳	23.28	-	DFT · TBmBJ
Electron Effective Mass(m*e)	1.090	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.780	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1066	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00138	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00195	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-306.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	358.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	32.27	%	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)	-0.3851	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

Export Control

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.

Nb3Sb2Te5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control