Sm2PbSe4

ceramic

· JVASP-53411· Sm2PbSe4

Sm2PbSe4 is a rare-earth lead selenide ceramic compound belonging to the family of mixed-metal chalcogenides, combining samarium and lead with selenium anions. This material is primarily of research interest for thermoelectric and optoelectronic applications, where its electronic structure and phonon properties make it a candidate for solid-state energy conversion and infrared detection systems. While not yet widely commercialized, compounds in this material family are investigated as alternatives to conventional thermoelectrics and semiconductors due to their potential for tuning electrical and thermal transport properties.

thermoelectric cooling/power generationinfrared detectorsresearch semiconductorsthermal energy harvestingoptoelectronic devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	9,363.6	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	4,628.2	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2746	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.761	eV	DFT · OptB88vdW
↳	2.147	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	41.99	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	11.93	-	DFT · OptB88vdW
↳	9.493	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.4100	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.777	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1974	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00161	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00164	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-225.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	361.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	19.81	%	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)	0.03960	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.544	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.

Sm2PbSe4 — Properties & Data | MatWorld

Sm2PbSe4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental