K2VCuS4

Name: K2VCuS4
Brand: MatWorld

semiconductor

· K2VCuS4

K2VCuS4 is a quaternary sulfide semiconductor compound containing potassium, vanadium, copper, and sulfur elements. This material belongs to the family of mixed-metal sulfides and is primarily of research interest for exploring novel semiconductor properties and potential photovoltaic or optoelectronic device applications. While not yet established in mainstream industrial production, compounds in this structural class are investigated for their tunable band gaps and mixed-valence metal chemistry, which could enable cost-effective alternatives to conventional semiconductors if scalability and performance targets are met.

experimental semiconductor researchphotovoltaic device developmentthin-film optoelectronicsmixed-metal sulfide compoundsmaterials screening for solid-state devicesearth-abundant semiconductor alternatives

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.09917	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)3 entries	1.820	eV	Measured
↳	1.273	eV	DFT · OptB88vdW
↳	1.259	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.841	-	DFT · OptB88vdW
↳	5.992	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000763	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00152	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-365.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	322.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.27	%	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)	-1.137	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.

K2VCuS4 — Properties & Data | MatWorld

K2VCuS4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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