K2CuSb

metal

· JVASP-7651· K2CuSb

K2CuSb is an intermetallic compound composed of potassium, copper, and antimony, belonging to the class of ternary metal systems. This material is primarily of research and experimental interest rather than an established commercial alloy, with potential applications in thermoelectric devices and advanced functional materials where the combination of these elements can provide favorable electronic or thermal transport properties. Engineers would consider K2CuSb mainly in early-stage development of energy conversion systems or specialized electronic applications where the unique phase chemistry of copper-antimony-alkali metal systems offers advantages over conventional alternatives.

thermoelectric materials researchexperimental intermetallic compoundselectronic devices developmentmaterials science investigationfunctional material prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	2,960.2	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	1,596.9	ksi	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1229	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	1.248	eV	DFT · OptB88vdW
↳	1.742	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	15.41	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.098	-	DFT · OptB88vdW
↳	6.139	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.6233	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.403	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	0.00120	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00112	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-148.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	340.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	28.50	%	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)	-0.4001	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.

K2CuSb — Properties & Data | MatWorld

K2CuSb

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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