Te4W3S2 — Properties & Data | MatWorld

Te4W3S2

metal

· JVASP-28577· Te4W3S2

Te4W3S2 is a quaternary intermetallic compound containing tellurium, tungsten, and sulfur elements, representing an experimental or specialized material rather than a conventional engineering alloy. This composition class is of interest primarily in research contexts for functional and electronic applications where mixed-anion systems offer tunable electrical, thermal, or catalytic properties. Limited industrial adoption suggests this remains a development-stage material; engineers would consider it only for novel applications requiring the specific electronic or structural characteristics of tellurium-tungsten-sulfide systems.

research and developmentthermoelectric devicescatalysis applicationselectronic materialschalcogenide compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.623	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.01400	eV	DFT · OptB88vdW
↳	0.04300	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	16.50	-	DFT · OptB88vdW
↳	15.10	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.00333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.00333	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000408	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000408	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-3.643	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	55.31	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	5.840	%	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)	0.2164	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2396	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.

Te4W3S2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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