Tl3AsSe3 — Properties & Data | MatWorld

Tl3AsSe3

Name: Tl3AsSe3
Brand: MatWorld

semiconductor

· Tl3AsSe3

Tl₃AsSe₃ is a ternary chalcogenide semiconductor compound combining thallium, arsenic, and selenium in a layered crystal structure. This material belongs to the family of narrow-bandgap semiconductors and is primarily investigated in research contexts for its potential in infrared optoelectronics and thermoelectric applications, where its composition offers tunable electronic and thermal properties distinct from binary semiconductor alternatives.

infrared detectors and sensorsthermoelectric energy conversionphotovoltaic researchnonlinear optical applicationsexperimental semiconductor devicesmaterials research and characterization

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	22.31	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3600	-	DFT · OptB88vdW
Shear Modulus(G)	6.790	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.367	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	1.300	eV	Measured
↳	0.6960	eV	DFT · OptB88vdW
↳	1.363	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	26.51	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	12.68	-	DFT · OptB88vdW
↳	8.070	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.2767	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.037	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.3460	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00102	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00232	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-138.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	380.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.93	%	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)	-0.3238	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

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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.

Tl3AsSe3

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