Tl2S5 — Properties & Data | MatWorld

Tl2S5

ceramic

· JVASP-59104· Tl2S5

Tl₂S₅ is a thallium sulfide ceramic compound belonging to the chalcogenide family, characterized by mixed-valence thallium and extended sulfur coordination. This material is primarily investigated in research contexts for optoelectronic and photonic applications, particularly where infrared transparency and semiconductor properties are relevant; it remains largely experimental rather than widely commercialized, positioning it as a candidate material for next-generation optical devices and sensing systems where conventional semiconductors face limitations.

infrared optics and windowsphotonic research deviceschalcogenide semiconductorsspecialty optical materialsexperimental thin films

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1839	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.613	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	16.41	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.07607	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000898	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000581	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-274.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	352.2	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)	-0.2061	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.

Tl2S5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental