YTlS2

ceramic

· JVASP-79589· YTlS2

YTlS₂ is a rare-earth thallium sulfide ceramic compound combining yttrium and thallium in a layered sulfide structure. This is a research-phase material studied for its potential electronic and thermal properties within the broader family of chalcogenide ceramics, which are being explored for next-generation thermoelectric, photonic, and solid-state device applications where conventional oxides fall short.

thermoelectric devicessolid-state electronics researchphotonic materials developmenthigh-temperature semiconductorsmaterials science experimentation

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2052	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.974	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	7.607	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	1.227	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.9300	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00349	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	-355.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	174.9	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.

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)	-1.648	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.

YTlS2 — Properties & Data | MatWorld

YTlS2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental