DyCuSe2

metal

· DyCuSe2

DyCuSe2 is an intermetallic compound combining dysprosium (a rare earth element), copper, and selenium. This is a research-phase material rather than a production alloy, belonging to the family of rare earth chalcogenides and intermetallics that are investigated for electronic, magnetic, and thermoelectric properties. Materials in this composition space are of interest to materials scientists exploring quantum materials, semiconducting compounds, and functional ceramics where rare earth elements provide unique magnetic or electronic behavior.

thermoelectric devices (research)magnetic materials (experimental)semiconductor compoundshigh-performance electronicsquantum materials researchspecialty metallurgical applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2477	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.199	eV	DFT · OptB88vdW
↳	1.513	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	19.91	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	10.21	-	DFT · OptB88vdW
↳	8.090	-	DFT · TBmBJ
Electron Effective Mass(m*e)	1.383	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.7433	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.5485	C/m²	DFT · OptB88vdW
↳	0.3836	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00389	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00197	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-306.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	241.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	32.20	%	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)	0.00610	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.254	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.

DyCuSe2 — Properties & Data | MatWorld

DyCuSe2

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