KCuSe

metal

· KCuSe

KCuSe is an intermetallic compound composed of potassium, copper, and selenium, belonging to the family of ternary metal chalcogenides. This material is primarily of research and development interest rather than a widely established industrial material, with potential applications in thermoelectric devices, semiconducting systems, and advanced functional materials where the combined properties of its constituent elements can be exploited. Engineers and materials scientists investigate KCuSe-type compounds for their electronic properties and structural characteristics in emerging applications where conventional metals and alloys are insufficient.

thermoelectric devicessemiconducting materials researchadvanced functional materialssolid-state electronicsmaterials science researchexperimental compound development

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	4,947.5	ksi	DFT
↳	6,072.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	3,130.9	ksi	DFT
↳	3,655	ksi	DFT · OptB88vdW

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.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1495	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	0.3620	eV	DFT · OptB88vdW
↳	1.757	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	52.03	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	11.19	-	DFT · OptB88vdW
↳	4.256	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.1533	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.3367	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000364	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00294	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-53.75	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	230	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	28.18	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7650	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.

KCuSe — Properties & Data | MatWorld

KCuSe

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