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
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 54.50 | GPa | — | ||
Poisson's Ratio(ν) | 0.2200 | - | — | ||
Shear Modulus(G) | 39.02 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 9.086 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.8510 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 17.61 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.06469 | C/m² | — | ||
Seebeck Coefficient(S) | -19.39 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1287 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.3476 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
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.