KLaTe2 — Properties & Data | MatWorld

KLaTe2

ceramic

· KLaTe2

KLaTe2 is a ternary ceramic compound containing potassium, lanthanum, and tellurium elements, representing a specialized composition within the family of rare-earth telluride ceramics. This material is primarily of research and exploratory interest rather than established commercial production, with potential applications in thermoelectric devices, solid-state electronic components, or specialized optical materials where the combination of rare-earth and chalcogenide properties offers advantages over conventional alternatives.

thermoelectric devicesresearch ceramicssolid-state electronicsrare-earth compoundshigh-temperature materialsspecialized optical applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.671	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.583	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)2 entries	13.36	-	DFT · PBE
↳	9.757 range 6.489–13.02median of 2 measurements	-	DFT · PBEsol
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.6533	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.137	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00301	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00161	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-260.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	264.2	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)	-1.570	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

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.

KLaTe2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental