TaTl3S4 — Properties & Data | MatWorld

TaTl3S4

ceramic

· TaTl3S4

TaTl3S4 is a ternary ceramic compound combining tantalum, thallium, and sulfur, belonging to the family of chalcogenide ceramics. This is a research-phase material studied for its potential in solid-state electronics and photonic applications due to the electronic properties imparted by its heavy metal composition. While not yet established in mainstream industrial production, materials in this chemical family are investigated for semiconducting behavior, optical transparency windows, and potential thermoelectric or optoelectronic device integration.

experimental semiconductor researchchalcogenide photonicssolid-state electronicsoptical materials developmentmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	25.47	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4000	-	DFT · OptB88vdW
Shear Modulus(G)	9.040	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.644	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.654	eV	DFT · OptB88vdW
↳	3.203	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	17.10	-	DFT · OptB88vdW
↳	20.09	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.665	-	DFT · OptB88vdW
↳	6.415	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	1.080	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.8600	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.1722	C/m²	DFT · OptB88vdW
↳	0.2295	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00225	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00256	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-325.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	341.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	2.820	%	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7643	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.

TaTl3S4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental