SmSe

semiconductor
· SmSe

SmSe (samarium selenide) is a rare-earth semiconductor compound belonging to the lanthanide chalcogenide family, characterized by ionic bonding between samarium and selenium atoms. While primarily of research interest, SmSe and related rare-earth selenides are investigated for infrared optics, thermoelectric devices, and solid-state physics applications where their narrow bandgap and high refractive index are advantageous. Engineers consider SmSe when conventional semiconductors (Si, GaAs) are unsuitable for mid-to-far infrared wavelengths or when rare-earth electronic properties are essential, though material availability and cost typically limit adoption to specialized defense, sensing, and basic research contexts.

infrared optics and detectorsthermoelectric devicessolid-state physics researchrare-earth semiconductor researchhigh-temperature sensingadvanced materials development

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
50.37
GPa—
Poisson's Ratio(ν)
0.2900
-—
Shear Modulus(G)
2.840
GPa—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
5.709
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
0.4600
eV—
↳
0.000
eV—
Magnetic Moment(μB)
0.000
µB—
Seebeck Coefficient(S)
-0.7733
µV/K—
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.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.5837
eV/atom—
Formation Energy(ΔHf)2 entries
-2.298
eV/atom—
↳
-1.297
eV/atom—
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.
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.