ScCuS2

metal

· ScCuS2

ScCuS2 is an experimental ternary chalcogenide compound combining scandium, copper, and sulfur—a material class of significant interest for semiconductor and photovoltaic applications. While not yet established in commercial production, scandium-copper sulfides represent an emerging research frontier for absorber layers in thin-film solar cells and solid-state electronic devices, offering potential advantages in bandgap tunability and earth-abundant element composition compared to conventional cadmium telluride or lead halide alternatives.

thin-film photovoltaics (research)semiconductor absorber layerssolid-state electronics (early-stage)light-harvesting materialsearth-abundant solar technologymaterials science research

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Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	12,144.8	ksi	DFT
↳	12,738.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3200	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	5,474.1	ksi	DFT
↳	5,575.3	ksi	DFT · OptB88vdW

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
Density(ρ)	0.1417	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	0.9260	eV	DFT · OptB88vdW
↳	1.037	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	23.88	-	DFT · OptB88vdW
↳	20.71	-	DFT · PBE
↳	16.04 range 11.42–20.66median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	11.13	-	DFT · OptB88vdW
↳	13.31	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	1.003	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.090	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.4553	C/m²	DFT · OptB88vdW
↳	0.5568	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00261	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00194	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-315.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	275.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	32.15	%	DFT · TBmBJ

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.407	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

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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.

ScCuS2 — Properties & Data | MatWorld

ScCuS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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