NaAsS2 — Properties & Data | MatWorld

NaAsS2

Name: NaAsS2
Brand: MatWorld

semiconductor

· NaAsS2

NaAsS₂ is a ternary semiconductor compound combining sodium, arsenic, and sulfur in a layered crystal structure. This material belongs to the family of metal chalcogenide semiconductors and remains primarily in research and development phase, with limited commercial deployment. It is of interest in optoelectronic and photovoltaic applications due to its direct bandgap characteristics and potential for thin-film device fabrication, though it faces challenges related to arsenic toxicity and material stability compared to more widely adopted III-V or II-VI semiconductors.

photovoltaic researchthin-film optoelectronicssemiconductor device developmentchalcogenide compound researchexperimental solar cells

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	22.99	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	12.39	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.891	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)3 entries	1.271	eV	DFT · OptB88vdW
↳	2.097	eV	DFT · TBmBJ
↳	2.230	eV	Measured
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.592	-	DFT · OptB88vdW
↳	5.398	-	DFT · TBmBJ
Electron Effective Mass(m*e)	1.507	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.437	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00216	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000862	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-195.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	317.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	20.89	%	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)	-0.6887	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

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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.

NaAsS2

Mechanical Properties

Physical Properties

Electrical Properties

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