K2NaAlAs2 — Properties & Data | MatWorld

K2NaAlAs2

metal

· JVASP-10481· K2NaAlAs2

K2NaAlAs2 is an intermetallic compound combining potassium, sodium, aluminum, and arsenic elements, belonging to the class of complex metal aluminides and arsenides. This is a research-phase material with limited industrial adoption; compounds in this family are primarily investigated for semiconductor applications, optoelectronic devices, and solid-state physics studies where the specific combination of metallic and semi-metallic character enables unusual electronic properties. Engineers would consider this material only in advanced research contexts where its unique crystal structure and electronic behavior offer advantages over conventional semiconductors or intermetallics for niche applications.

experimental semiconductor researchoptoelectronic device developmentsolid-state physics studiesadvanced materials characterizationarsenic-based compound development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	25.59	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	16.41	GPa	DFT · OptB88vdW

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Property	Value	Unit	Conditions	Source
Density(ρ)	2.837	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.248	eV	DFT · OptB88vdW
↳	2.529	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.537	-	DFT · OptB88vdW
↳	5.455	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000557	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00195	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-70.05	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	345.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	12.09	%	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)	-0.6674	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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K2NaAlAs2

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