K2ZnTe2 — Properties & Data | MatWorld

K2ZnTe2

Name: K2ZnTe2
Brand: MatWorld

semiconductor

· K2ZnTe2

K2ZnTe2 is a ternary semiconductor compound combining potassium, zinc, and tellurium in a 1:1:2 stoichiometry. This is a research-stage material belonging to the family of II-VI and multinary semiconductors, which are studied for optoelectronic and photovoltaic applications where tunable bandgap and lattice properties are advantageous. While not yet widely commercialized, compounds in this family are investigated for infrared detectors, solar cells, and wide-bandgap device applications where conventional semiconductors like CdTe or GaAs have limitations.

infrared photodetectorsexperimental photovoltaic cellswide-bandgap semiconductorsresearch optoelectronicsternary semiconductor developmentoptical window devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	19.79	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	9.190	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.745	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)2 entries	1.964	eV	DFT · OptB88vdW
↳	3.000	eV	Measured
Dielectric Constant (Relative Permittivity)(εr)2 entries	9.550	-	DFT · PBE
↳	7.028 range 5.034–9.023median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.769	-	DFT · OptB88vdW
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.8767	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.447	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00117	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00103	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-186.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	339.2	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)	-0.9334	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.

K2ZnTe2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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