TlBiTe2 — Properties & Data | MatWorld

TlBiTe2

Name: TlBiTe2
Brand: MatWorld

semiconductor

· TlBiTe2

TlBiTe2 is a ternary telluride semiconductor compound composed of thallium, bismuth, and tellurium elements. This is a research-phase material studied primarily for thermoelectric and optoelectronic applications, belonging to the broader family of bismuth telluride-based semiconductors known for their narrow bandgaps and potential for energy conversion at moderate temperatures. The material's ternary composition offers potential advantages in tuning electronic and thermal transport properties compared to binary alternatives, making it of interest for next-generation thermoelectric devices and solid-state cooling systems where performance optimization beyond conventional materials is required.

thermoelectric power generationsolid-state cooling devicesnarrow-bandgap semiconductorsoptoelectronic researchthermal energy harvestingmaterials development phase

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	32.51	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2600	-	DFT · OptB88vdW
Shear Modulus(G)	22.65	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.758	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	0.1200	eV	Measured
↳	0.4560	eV	DFT · OptB88vdW
↳	0.7550	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	27.40	-	DFT · OptB88vdW
↳	20.59	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.1467	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.2167	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00215	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00354	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-146.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	193.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	25.50	%	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)	-0.3112	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

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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.

TlBiTe2

Mechanical Properties

Physical Properties

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