Cu1 As1 Se2

semiconductor

· Cu1 As1 Se2

CuAsS₂ is a ternary chalcogenide semiconductor compound combining copper, arsenic, and selenium in a crystalline structure. This material belongs to the I-V-VI₂ chalcogenide family and is primarily of research and development interest rather than established commercial production. The compound is investigated for potential applications in photovoltaic devices, infrared optics, and solid-state electronic components, where its bandgap and optical properties may offer advantages in niche photonic and sensing applications compared to more conventional binary semiconductors.

photovoltaic researchinfrared detectorsoptical materials developmentthermoelectric deviceschalcogenide electronicsmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	47.80	GPa	—
Shear Modulus(G)	14.82	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.05880	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.01600	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.

Cu1 As1 Se2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control