Cu4 Si2 Ni1 S7
semiconductor· Cu4 Si2 Ni1 S7
Cu₄Si₂Ni₁S₇ is a quaternary sulfide semiconductor compound combining copper, silicon, nickel, and sulfur. This material belongs to the family of transition metal sulfides and represents a research-phase composition; such mixed-metal sulfides are investigated for potential optoelectronic and energy storage applications where the combination of metallic and semiconducting elements can create tunable band gaps and enhanced charge-carrier dynamics. The specific stoichiometry suggests exploration in photovoltaic absorber layers, thermoelectric devices, or electrochemical energy conversion systems where heteroatomic sulfide phases offer advantages in cost and earth-abundance compared to traditional III-V semiconductors.
Photovoltaic absorber materialsThermoelectric devicesElectrochemical energy storageResearch-phase semiconductorsEarth-abundant solar materialsTransition metal sulfide compounds
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.