KAuSe

metal

· KAuSe

KAuSe is an intermetallic compound combining potassium, gold, and selenium—a research-phase material rather than an established industrial alloy. This ternary compound belongs to the family of complex metal selenides and represents an emerging class of materials being investigated for electronic, thermoelectric, and solid-state device applications where the unique combination of these elements offers potential advantages in band structure engineering and charge transport properties.

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Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	2,725.3	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	338.4	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	1,408.3	ksi	DFT · OptB88vdW

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Property	Value	Unit	Conditions	Source
Density(ρ)	0.2122	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.046	eV	DFT · OptB88vdW
↳	3.117	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	14.14	-	DFT · OptB88vdW
↳	12.59	-	DFT · PBE
↳	7.411 range 5.205–9.618median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.943	-	DFT · OptB88vdW
↳	4.592	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.6300	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.723	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00179	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00144	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-210.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	259.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	3.320	%	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)	-0.7758	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

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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.

KAuSe — Properties & Data | MatWorld

KAuSe

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