KVCu2S4 — Properties & Data | MatWorld

KVCu2S4

metal

· JVASP-9785· KVCu2S4

KVCu₂S₄ is a quaternary metal sulfide compound containing potassium, copper, and sulfur. This material belongs to the family of mixed-metal sulfides and is primarily of research and materials science interest rather than established industrial production. The compound is investigated for potential applications in solid-state chemistry, thermoelectric devices, and ion-conducting systems where its layered sulfide structure and mixed-valence copper chemistry may offer advantages in charge transport or thermal management.

solid-state electronics researchthermoelectric materials developmention conductor candidateslaboratory synthesismaterials characterization studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1190	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.069	eV	DFT · OptB88vdW
↳	1.003	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	11.79	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.212	-	DFT · OptB88vdW
↳	8.708	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.2999	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000550	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00149	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-406.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	354.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	31.93	%	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)	-0.8990	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

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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.

KVCu2S4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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