K2TaCuSe4

metal

· JVASP-10471· K2TaCuSe4

K2TaCuSe4 is an intermetallic compound combining tantalum, copper, and selenium in a potassium-based matrix. This is an experimental material primarily studied in solid-state chemistry and materials research rather than established industrial production; it belongs to the family of complex metal selenides that show potential for thermoelectric, optoelectronic, or photovoltaic applications due to the electronic properties imparted by its mixed-metal composition. Engineers would consider this material in emerging technologies where tantalum's refractory character combines with selenium's semiconductor behavior, though it currently lacks widespread commercial deployment and would require significant development work for practical applications.

thermoelectric researchexperimental semiconductorsphotovoltaic developmentsolid-state electronicsmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1657	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.025	eV	DFT · OptB88vdW
↳	2.193	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.274	-	DFT · OptB88vdW
↳	5.684	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00122	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00143	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-329.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	303.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	18.85	%	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)	-0.9911	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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K2TaCuSe4 — Properties & Data | MatWorld

K2TaCuSe4

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