TmTlS2 — Properties & Data | MatWorld

TmTlS2

ceramic

· JVASP-79614· TmTlS2

TmTlS2 is a ternary ceramic compound combining thulium, thallium, and sulfur, representing an advanced mixed-metal chalcogenide material. This is a research-phase compound not yet established in mainstream industrial production, studied primarily for its potential in optoelectronic and thermoelectric applications where the combination of heavy elements and sulfur coordination offers tunable electronic and phononic properties. Engineers and materials researchers evaluate such compounds as candidates for next-generation energy conversion, infrared optical devices, or specialized solid-state electronics where conventional semiconductors are limited.

Thermoelectric devices (research)Infrared opticsSolid-state electronics (experimental)Mixed-metal chalcogenidesHigh-density ceramic applicationsPhotovoltaic research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	51.98	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	31.67	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.158	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	1.433	eV	DFT · OptB88vdW
↳	2.105	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	27.80	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.688	-	DFT · OptB88vdW
↳	6.419	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.8900	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.5033	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00240	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00105	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-268.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	125.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	20.69	%	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.

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)	-1.623	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.

TmTlS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental