YbNaS2 — Properties & Data | MatWorld

YbNaS2

ceramic

· JVASP-15398· YbNaS2

YbNaS₂ is a rare-earth sulfide ceramic compound containing ytterbium, sodium, and sulfur, representing a class of materials explored for specialized optical and electronic applications. This is primarily a research-phase material rather than a widely commercialized engineering ceramic; compounds in this family are investigated for potential use in solid-state lighting, thermal management systems, and photonic devices where rare-earth dopants provide luminescent or refractive properties. Engineers would consider this material when conventional oxides or phosphors cannot meet performance requirements for wavelength-specific emission or when the combination of rare-earth and alkali chemistry offers advantages in high-temperature stability or optical transparency.

rare-earth phosphors and luminescent coatingssolid-state lighting researchthermal optical coatingsphotonic and optoelectronic deviceshigh-temperature ceramic compositesspecialized ceramic research applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.767	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00169	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00166	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	33.52	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	33.08	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)	0.2315	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.482	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.

YbNaS2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental