TlSbSe2 — Properties & Data | MatWorld

TlSbSe2

Name: TlSbSe2
Brand: MatWorld

semiconductor

· TlSbSe2

TlSbSe₂ is a ternary semiconductor compound composed of thallium, antimony, and selenium, belonging to the V-VI-VII semiconductor family with potential thermoelectric and optoelectronic properties. This material remains primarily in the research and development phase, with investigation focused on its narrow bandgap characteristics and potential applications in infrared detection, thermal energy conversion, and specialized photonic devices. While less established than binary semiconductors, ternary chalcogenides like TlSbSe₂ are of interest to researchers exploring alternatives to conventional thermoelectrics and narrow-bandgap detectors.

infrared detectorsthermoelectric devicesoptoelectronic researchnarrow-bandgap semiconductorsthermal energy harvestingadvanced materials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	6.939	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	0.7090	eV	DFT · OptB88vdW
↳	1.171	eV	DFT · TBmBJ
↳	0.8200	eV	Measured
Dielectric Constant (Relative Permittivity)(εr)	185.4	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	19.21	-	DFT · OptB88vdW
↳	12.98	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.3933	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.7000	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.00502	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00186	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00142	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-171.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	205.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.79	%	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)	-0.3544	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.

TlSbSe2

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