TaCu3Se4
metal· TaCu3Se4
TaCu₃Se₄ is an intermetallic compound combining tantalum, copper, and selenium, belonging to the family of ternary metal chalcogenides. This is a research-phase material studied primarily for its electronic and structural properties rather than an established industrial compound. The material family is of interest in semiconductor research, thermoelectric device development, and solid-state chemistry, where the combination of a refractory metal (tantalum) with copper and a chalcogen (selenium) creates potential for novel electronic behavior, though practical engineering applications remain limited to specialized research contexts.
thermoelectric researchsemiconductor developmentmetal chalcogenide compoundssolid-state electronicsexperimental materials sciencematerials database reference
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 31.47 | GPa | — | ||
Shear Modulus(G) | 21.69 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.196 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.587 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 7.320 | - | — | ||
| ↳ | 7.404 | - | — | ||
| ↳ | 7.715 range 7.598–7.831median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.03648 | C/m² | — | ||
| ↳ | 0.06943 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -307.3 | µV/K | — |
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.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4929 | 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.