LuTlSe2 — Properties & Data | MatWorld

LuTlSe2

ceramic

· JVASP-35966· LuTlSe2

LuTlSe2 is a ternary ceramic compound containing lutetium, thallium, and selenium, representing an experimental material in the selenide ceramic family. While not yet established in mainstream industrial production, this material belongs to a class of heavy-metal selenide ceramics being explored for specialized optoelectronic and thermoelectric applications where the combined properties of rare earth (lutetium) and post-transition metal (thallium) elements may offer advantages in photon absorption, charge transport, or thermal management at specific wavelengths or temperature ranges.

experimental optoelectronicsthermoelectric device researchinfrared detector developmentphotonic material studiessemiconductor research compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	45.87	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	28.78	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.999	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	1.134	eV	DFT · OptB88vdW
↳	1.756	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	25.69	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.563	-	DFT · OptB88vdW
↳	6.840	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.9467	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.3600	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	0.00260	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000916	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-279.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	104.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	28.23	%	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)	-1.417	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.

LuTlSe2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental