Cu3AsSe4

semiconductor

· Cu3AsSe4

Cu₃AsSe₄ is a ternary semiconductor compound combining copper, arsenic, and selenium in a tetrahedral crystal structure, belonging to the family of chalcogenide semiconductors. This material remains primarily in research and development phases, where it is investigated for potential optoelectronic and photovoltaic applications due to its tunable bandgap and semiconducting behavior. Interest in Cu₃AsSe₄ stems from the broader family of copper-based chalcogenides, which offer promise as alternatives to conventional semiconductors in thin-film solar cells and photodetectors, though industrial deployment remains limited compared to mature technologies.

thin-film photovoltaics (research)photodetectorsoptoelectronic devices (developmental)solid-state physics researchbandgap engineering studiesalternative semiconductor platforms

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1969	lb/in³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.6500	eV	—
↳	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	—
Formation Energy(ΔHf)	-0.1553	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.

Cu3AsSe4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control