Sm2PbS4 — Properties & Data | MatWorld

Sm2PbS4

ceramic

· JVASP-53535· Sm2PbS4

Sm₂PbS₄ is a rare-earth lead sulfide ceramic compound that combines samarium and lead sulfide chemistry, positioning it within the family of chalcogenide ceramics used in electronic and photonic applications. This material is primarily of research interest for semiconductor and optoelectronic device development, where lead sulfide compounds are valued for infrared absorption and emission properties. Engineers exploring this composition would consider it for potential infrared detector applications, thermoelectric devices, or other applications where rare-earth doping of lead chalcogenides offers enhanced functional properties compared to undoped alternatives.

infrared detectorsthermoelectric devicesoptoelectronic componentsresearch semiconductorsrare-earth doped ceramicsphotonic applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	74.72	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	36.99	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.625	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	2.220	eV	DFT · OptB88vdW
↳	2.662	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	39.22	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	10.13	-	DFT · OptB88vdW
↳	8.663	-	DFT · TBmBJ
Electron Effective Mass(m*e)	1.587	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
Piezoelectric Modulus(eij)	0.1829	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00182	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00180	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-344.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	350.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	9.540	%	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)	-1.756	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.

Sm2PbS4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental