Sm4 Pb2 Se8

semiconductor

· Sm4 Pb2 Se8

Sm₄Pb₂Se₈ is a rare-earth lead selenide semiconductor compound belonging to the family of mixed-valence chalcogenides, currently investigated in materials research rather than established in volume production. This material is of interest for thermoelectric applications and solid-state physics studies due to its complex crystal structure and potential for tuning electronic properties through the rare-earth (samarium) and lead components. Engineers would consider this compound for next-generation thermoelectric devices or advanced optoelectronic systems where the interplay between rare-earth and post-transition metal sites offers opportunities for band-gap engineering and phonon scattering optimization.

Thermoelectric devicesSolid-state researchRare-earth semiconductorsLow-dimensional electronicsMaterials screening for energy conversionExperimental compound development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	9,363.1	ksi	—
Shear Modulus(G)	4,628.6	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.761	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.544	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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.

Sm4 Pb2 Se8

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control