Cu3AsS4

Name: Cu3AsS4
Brand: MatWorld

semiconductor

· Cu3AsS4

Cu₃AsS₄ is a quaternary semiconductor compound belonging to the chalcogenide family, combining copper with arsenic and sulfur in a crystalline structure. This material is primarily of research interest for photovoltaic and thermoelectric applications, where its semiconducting properties and elemental composition offer potential advantages in solar cell development and waste-heat recovery systems. Cu₃AsS₄ represents an underexplored alternative to more established semiconductor materials, though it remains largely in the experimental stage with limited commercial deployment compared to conventional silicon or chalcopyrite-based solar absorbers.

photovoltaic cells (research)thin-film solar devicesthermoelectric materials (experimental)semiconductor optoelectronicsmaterials substitution researchsustainable energy conversion

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	10,597.9	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3600	-	DFT · OptB88vdW
Shear Modulus(G)	3,521.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1575	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.240	eV	Measured
↳	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00107	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00111	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	28.91	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	29.09	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.000300	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2501	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Cu3AsS4 — Properties & Data | MatWorld

Cu3AsS4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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