Sm2Se3 — Properties & Data | MatWorld

Sm2Se3

Name: Sm2Se3
Brand: MatWorld

semiconductor

· Sm2Se3

Sm₂Se₃ is a rare-earth chalcogenide semiconductor compound combining samarium with selenium, belonging to the family of lanthanide selenides studied for optoelectronic and thermoelectric applications. This material is primarily investigated in research settings for infrared optics, solid-state lighting, and thermal energy conversion devices where rare-earth semiconductors offer tunable bandgap and unique optical properties. While not yet widely commercialized compared to mainstream semiconductors, Sm₂Se₃ represents a promising candidate in the rare-earth materials palette for niche high-performance applications requiring mid-infrared transparency or enhanced thermoelectric efficiency.

infrared optics and windowsthermoelectric devicesoptoelectronic researchsolid-state lightingrare-earth semiconductor applicationsthermal energy conversion

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2496	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	0.3590	eV	DFT · OptB88vdW
↳	0.9720	eV	DFT · TBmBJ
↳	2.300	eV	Measured
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	10.24	-	DFT · OptB88vdW
↳	7.768	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.2367	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.3733	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000576	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000888	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-98.81	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	196.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	31.69	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.979	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

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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.

Sm2Se3

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