Cu5Si2S7
metal· JVASP-98508· Cu5Si2S7
Cu5Si2S7 is a quaternary copper-silicon sulfide compound that belongs to the family of metal chalcogenides—materials combining metals with sulfur and other chalcogens. This is a research-phase material rather than a commercial engineering alloy; compounds in this family are primarily investigated for semiconductor, thermoelectric, and photovoltaic applications where the combination of metallic and chalcogenic properties enables band-gap tuning and charge-carrier control. Copper silicosulfides are notable for their potential in low-cost photovoltaic absorbers, solid-state batteries, and thermal-electric energy conversion, offering alternatives to more expensive or toxic semiconductor systems.
photovoltaic absorber layersthermoelectric materialssolid-state battery componentssemiconductor researchenergy conversion devicesmaterials chemistry development
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | 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.