Cu4 As4 S4

semiconductor
· Cu4 As4 S4

Cu₄As₄S₄ is a quaternary semiconductor compound belonging to the metal chalcogenide family, combining copper, arsenic, and sulfur in a stoichiometric ratio. This material is primarily of research and emerging technology interest rather than established industrial production, with potential applications in photovoltaic devices, infrared detectors, and solid-state electronics where its semiconducting properties and stability could offer advantages over binary or ternary alternatives. The compound's structural complexity and tunable bandgap make it relevant to researchers exploring next-generation semiconductor architectures, though practical engineering applications remain limited pending further development of synthesis routes and device integration methods.

photovoltaic devicesinfrared sensorsresearch semiconductorssolid-state electronicschalcogenide optoelectronicsemerging materials development

Compliance & Regulations

?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
9,907.7
ksi—
Shear Modulus(G)
4,302.8
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.00750
eV—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
-0.2090
eV/atom—
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

Quality & Standards

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.