YbTlS2 — Properties & Data | MatWorld

YbTlS2

Name: YbTlS2
Brand: MatWorld

ceramic

· YbTlS2

YbTlS2 is a ternary ceramic compound composed of ytterbium, thallium, and sulfur, belonging to the family of rare-earth chalcogenides. This material is primarily investigated in research contexts for its potential in solid-state physics and materials science, particularly as a candidate for thermoelectric applications, optoelectronic devices, and studies of electronic structure in mixed-valence systems. Its selection over simpler binary sulfides or oxides stems from the unique electronic and phononic properties that arise from combining rare-earth and post-transition metal constituents, making it of interest to researchers exploring novel functional ceramics rather than established industrial applications.

thermoelectric researchsolid-state physicsrare-earth compound studiesoptoelectronic materials developmentmaterials science characterizationexperimental functional ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	51.68	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	24.71	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.579	kg/m³	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	0.000	eV	DFT · OptB88vdW
↳	0.5000	eV	DFT · TBmBJ
↳	0.000	eV	Measured
High-Frequency Dielectric Constant (ε∞)(ε∞)	8.913	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000216	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000212	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-2.307	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-3.093	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	15.32	%	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)	0.1299	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

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.

YbTlS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental