K4Au6S5 — Properties & Data | MatWorld

K4Au6S5

metal

· JVASP-25518· K4Au6S5

K4Au6S5 is a gold-sulfur intermetallic compound containing potassium, representing an exotic metal system not commonly encountered in conventional engineering. This is a research-phase material with limited industrial deployment; it belongs to the family of precious metal chalcogenides and is primarily studied for its unique crystal structure and electronic properties rather than as a production engineering material. Its relevance lies in specialized applications requiring tailored electronic, optical, or catalytic behavior in laboratory and emerging technology contexts.

solid-state chemistry researchexperimental semiconductorscatalysis developmentelectronic materials researchprecious metal compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2258	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.513	eV	DFT · OptB88vdW
↳	2.554	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	8.927	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.273	-	DFT · OptB88vdW
↳	4.611	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.01030	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000840	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000526	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-103.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	352.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	11.63	%	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)	-0.7064	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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K4Au6S5

Physical Properties

Electrical Properties

Other Properties

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