S4 Cu2 Ga2
semiconductor· S4 Cu2 Ga2
S4 Cu2 Ga2 is a quaternary semiconductor compound combining copper, gallium, and sulfur in a stoichiometric ratio, belonging to the I-III-VI family of semiconductor materials. This is primarily a research-phase material investigated for photovoltaic and optoelectronic applications due to its tunable bandgap and potential for thin-film device fabrication. Compared to binary semiconductors like CdTe or CIGS absorbers, quaternary Cu-Ga-S compounds offer compositional flexibility to engineer electronic properties, though they remain less commercially established and require further development for cost-effective manufacturability and long-term stability.
thin-film photovoltaic absorbersoptoelectronic device researchbandgap engineeringlaboratory-scale solar cellsmaterials research and development
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| 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.