Te2W3Se4

metal

· JVASP-28571· Te2W3Se4

Te2W3Se4 is a mixed-metal chalcogenide compound combining tungsten with tellurium and selenium, belonging to the family of transition-metal chalcogenides. This is primarily a research-phase material investigated for its potential in thermoelectric and optoelectronic applications, where the combination of heavy elements and layered crystal structures can enable efficient phonon scattering and tunable electronic properties. Compared to conventional thermoelectric alloys, chalcogenides like this offer promise for mid-to-high temperature energy conversion, though industrial adoption remains limited pending optimization of synthesis methods and performance validation at scale.

thermoelectric devicesenergy harvestingoptoelectronic researchhigh-temperature power generationmaterials physics researchsolid-state electronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	7,904.6	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	5,659.4	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3283	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.8510	eV	DFT · OptB88vdW
↳	0.8470	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	17.61	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	15.50	-	DFT · OptB88vdW
↳	14.04	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.06469	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000545	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000349	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-19.39	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-11.63	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	27.48	%	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)	0.1287	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3476	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

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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.

Te2W3Se4 — Properties & Data | MatWorld

Te2W3Se4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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