Te4W3Se2

metal

· JVASP-28573· Te4W3Se2

Te4W3Se2 is a mixed chalcogenide compound combining tungsten with tellurium and selenium—a material family that bridges traditional metallurgy and semiconductor science. This composition is primarily of research and development interest rather than established industrial production; such tellurium-tungsten-selenium systems are investigated for potential applications in thermoelectric energy conversion, thin-film electronics, and specialized optical devices where the layered chalcogenide structure may offer tunable electronic properties. Engineers considering this material should recognize it as an emerging compound requiring custom synthesis and characterization for specific advanced applications rather than a commodity material with mature supply chains.

thermoelectric devicesthin-film semiconductorsexperimental electronicschalcogenide opticsresearch prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	37.71	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.09000	-	DFT · OptB88vdW
Shear Modulus(G)	42.06	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2291	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.3770	eV	DFT · OptB88vdW
↳	0.4610	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	13.30	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	13.94	-	DFT · TBmBJ
↳	15.78	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.07777	C/m²	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	13.20	%	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)	0.2037	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1530	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.

Te4W3Se2 — Properties & Data | MatWorld

Te4W3Se2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control