CaSm2S4 — Properties & Data | MatWorld

CaSm2S4

Name: CaSm2S4
Brand: MatWorld

semiconductor

· CaSm2S4

CaSm2S4 is a ternary sulfide semiconductor compound combining calcium and samarium in a chalcogenide matrix, representing an emerging materials class for optoelectronic and photonic device research. While not yet widely commercialized, this material belongs to the rare-earth sulfide family that shows promise for infrared optics, photovoltaic applications, and solid-state lighting due to the unique electronic and optical properties imparted by samarium incorporation. Engineers investigating next-generation semiconductor materials for niche high-performance applications—particularly where rare-earth doping offers advantages in emission wavelength tuning or carrier dynamics—would evaluate this compound against more established alternatives like CdTe or lead halide perovskites.

infrared optics and detectorsrare-earth photoluminescenceexperimental photovoltaic absorberssolid-state lighting researchsemiconductor quantum dotshigh-bandgap device prototyping

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	10,882.2	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	6,233.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1849	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	2.050	eV	Measured
↳	2.108	eV	DFT · OptB88vdW
↳	2.918	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	21.02	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.125	-	DFT · OptB88vdW
↳	6.923	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.5333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.610	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.1635	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00123	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00211	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-193.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	340.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	5.620	%	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)	-2.281	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

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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.

CaSm2S4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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