KZnAs

ceramic

· KZnAs

KZnAs is a ternary II-VI semiconductor ceramic compound composed of potassium, zinc, and arsenic elements. This material belongs to the family of chalcogenide and pnictide semiconductors, primarily investigated in research contexts for optoelectronic and photonic device applications. While not yet widely commercialized, compounds in this material class are of interest for their tunable band gaps and potential use in infrared detection, nonlinear optical systems, and specialized semiconductor devices where conventional materials reach performance limits.

infrared optoelectronicsnonlinear optical devicessemiconductor researchphotonic componentsexperimental detector materials

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	4,488.1	ksi	DFT
↳	5,299.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	3,167.2	ksi	DFT
↳	3,673.8	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)	0.1348	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)	0.3190	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)3 entries	60.08	-	DFT · OptB88vdW
↳	38.01	-	DFT · PBE
↳	25.10 range 22.86–27.34median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	14.69	-	DFT · OptB88vdW
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.1133	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.2567	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.7439	C/m²	DFT · OptB88vdW
↳	0.1981	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000800	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00260	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-50.53	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	201	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.

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)	-0.5448	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.

KZnAs — Properties & Data | MatWorld

KZnAs

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental