S4 Cu2 In2
semiconductor· S4 Cu2 In2
S4Cu2In2 is a quaternary semiconductor compound combining sulfur, copper, and indium elements, likely a sulfide-based material in the ternary or quaternary chalcogenide family. This is a research-phase compound rather than a commercial semiconductor; materials in this compositional space are explored for photovoltaic absorber layers, solid-state battery electrolytes, and thermoelectric applications where the combination of earth-abundant copper and indium with sulfur offers potential cost advantages and tunable electronic properties compared to conventional silicon or CdTe systems.
thin-film photovoltaicssolar cellssolid-state batteriesthermoelectric energy conversionoptoelectronic devicesmaterials research
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | ksi | — | — | |
Shear Modulus(G) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
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.