Tl2SiS3 — Properties & Data | MatWorld

Tl2SiS3

ceramic

· JVASP-10215· Tl2SiS3

Tl₂SiS₃ is an inorganic ceramic compound belonging to the thallium silicate sulfide family, combining thallium, silicon, and sulfur in a ternary structure. This material is primarily of research and development interest rather than established in widespread industrial production, with potential applications in infrared optics, solid-state lighting, and advanced semiconductor contexts where its optical and electronic properties may offer advantages. Engineers would consider this compound for niche photonic or sensing applications where its specific band gap, refractive index, and thermal stability characteristics provide benefits over conventional oxides or binary sulfides, though availability and processing maturity remain considerations.

infrared optical windowssolid-state photonics researchsemiconductor heterostructuresnon-linear optical devicesexperimental optoelectronicsradiation detector development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	21.46	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3200	-	DFT · OptB88vdW
Shear Modulus(G)	10.33	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	5.514	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	2.052	eV	DFT · OptB88vdW
↳	2.685	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.248	-	DFT · OptB88vdW
↳	5.589	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.7133	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.783	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00224	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00183	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-243.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	273.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	9.110	%	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)	-0.6464	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.

Tl2SiS3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental