YTlSe2 — Properties & Data | MatWorld

YTlSe2

ceramic

· JVASP-79649· YTlSe2

YTlSe₂ is an experimental ternary ceramic compound composed of yttrium, thallium, and selenium, belonging to the family of rare-earth chalcogenides. This material is primarily of research interest rather than established industrial production, being studied for potential applications in thermoelectric devices and semiconductor technologies where the combination of rare-earth and chalcogenide chemistry may enable novel electronic or thermal properties.

thermoelectric devices (research)semiconductor materials (exploratory)rare-earth ceramicsmaterials physics researchthermal management (potential)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	6.460	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.309	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	8.479	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	2.050	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.3200	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00339	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000731	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-354.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	95.23	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)	-1.469	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

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.

YTlSe2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental