Cu3 As1 S4

semiconductor

· Cu3 As1 S4

Cu3As1S4 is a quaternary semiconductor compound combining copper, arsenic, and sulfur in a defined stoichiometric ratio. This material belongs to the I-III-VI family of semiconductors and is primarily of research and developmental interest rather than established industrial production. The compound is investigated for potential applications in photovoltaic devices, thermoelectric energy conversion, and optoelectronic components where its bandgap and electronic structure may offer advantages over more conventional semiconductors, though practical applications remain limited due to toxicity concerns associated with arsenic and the challenge of scaling synthesis methods.

photovoltaic researchthermoelectric materialsoptoelectronic devicessemiconducting compoundsmaterials science researchthin-film applications

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	73.07	GPa	—
Shear Modulus(G)	24.28	GPa	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.03220	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2500	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.

Cu3 As1 S4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control