NaSm3SiS7 — Properties & Data | MatWorld

NaSm3SiS7

ceramic

· JVASP-45315· NaSm3SiS7

NaSm3SiS7 is a rare-earth silicate sulfide ceramic composed of sodium, samarium, silicon, and sulfur. This material belongs to the family of rare-earth chalcogenide ceramics, which are primarily of research and developmental interest rather than established industrial commodities. The compound's potential lies in optical, thermal, or electronic applications where the rare-earth dopant (samarium) and mixed anion chemistry (oxide-sulfide framework) can be engineered for specific functionality, though widespread industrial adoption remains limited pending further characterization and process development.

rare-earth optical materialsexperimental ceramicsthermal management researchsemiconductor device developmentsolid-state chemistry

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.724	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.074	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	18.07	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	7.388	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	1.293	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.107	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1498	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00129	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000945	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-227.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	312.8	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)	-1.770	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.

NaSm3SiS7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental