Sm3CuGeSe7 — Properties & Data | MatWorld

Sm3CuGeSe7

metal

· JVASP-56452· Sm3CuGeSe7

Sm₃CuGeSe₇ is a rare-earth ternary chalcogenide compound combining samarium, copper, germanium, and selenium in a layered crystal structure. This is a research-phase material primarily investigated for its thermoelectric and semiconducting properties rather than established industrial production. The material family shows promise in solid-state energy conversion and photovoltaic applications due to the synergistic effects of rare-earth elements and chalcogenide chemistry, offering potential advantages in thermal-to-electrical conversion efficiency that would distinguish it from conventional thermoelectric alloys.

thermoelectric deviceswaste heat recoverysemiconducting compounds (research)solid-state energy conversionphotovoltaic researchhigh-temperature applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2353	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.137	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	10.37	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.6967	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.903	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00102	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00118	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-191.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	276.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	-1.355	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.

Sm3CuGeSe7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

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