KTaCu2Se4 — Properties & Data | MatWorld

KTaCu2Se4

metal

· JVASP-9753· KTaCu2Se4

KTaCu₂Se₄ is a ternary metal selenide compound combining potassium, tantalum, and copper elements, belonging to the family of chalcogenide materials with mixed-metal compositions. This is primarily a research-phase material studied for its potential electronic and optical properties rather than an established industrial material; compounds in this chemical family are investigated for applications requiring specific band gap engineering, thermoelectric behavior, or photovoltaic functionality. Engineers evaluating this material should recognize it as an exploratory composition where performance data and manufacturability are still under investigation, making it relevant only for advanced research projects or specialized optoelectronic device development.

experimental semiconductorsthermoelectric researchphotovoltaic developmentchalcogenide opticsmaterials science researchsolid-state device prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1909	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.655	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	7.302	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00131	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00147	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-331.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	303.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	-0.7437	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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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.

KTaCu2Se4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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