NaSmTe2 — Properties & Data | MatWorld

NaSmTe2

ceramic

· JVASP-37155· NaSmTe2

NaSmTe2 is an intermetallic ceramic compound combining sodium, samarium (a rare-earth element), and tellurium in a ternary phase. This material belongs to the broader family of rare-earth telluride ceramics, which are primarily of research and developmental interest rather than established commercial materials. Such compounds are investigated for potential applications in thermoelectric energy conversion, where their crystal structure and electronic properties may enable efficient heat-to-electricity conversion, as well as in solid-state materials research exploring photovoltaic and optoelectronic functionality.

thermoelectric devicesrare-earth ceramics researchsolid-state energy conversionadvanced semiconductor researchlaboratory/experimental materialselectronic materials development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	32.32	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	20.31	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	5.481	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.173	eV	DFT · OptB88vdW
↳	1.819	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	19.81	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.491	-	DFT · OptB88vdW
↳	7.300	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.5233	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.8533	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00299	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00209	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-238	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	244.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	26.96	%	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.

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)	-1.387	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.

NaSmTe2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental