Y3CuGeS7
metal· JVASP-25802· Y3CuGeS7
Y3CuGeS7 is a ternary sulfide compound combining yttrium, copper, and germanium, classified as an intermetallic or chalcogenide material. This is a research-phase compound rather than a widely commercialized engineering material; it belongs to a family of complex sulfides being explored for thermoelectric, optoelectronic, and solid-state energy conversion applications where rare-earth-containing phases offer tunable electronic properties. Engineers would investigate this material primarily in laboratory and prototype settings where its unique crystal structure and electronic characteristics could address niche requirements in next-generation energy harvesting or semiconductor device development.
Thermoelectric devices (experimental)Semiconductor researchSolid-state energy conversionHigh-temperature electronics prototypingAdvanced materials research
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 71.03 | GPa | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 36.74 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.258 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.722 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 18.25 | - | — | ||
Piezoelectric Modulus(eij) | 0.1794 | C/m² | — | ||
Seebeck Coefficient(S) | -201.4 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.597 | 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.