LiErSe2 — Properties & Data | MatWorld

LiErSe2

ceramic

· JVASP-101164· LiErSe2

LiErSe2 is an inorganic ceramic compound containing lithium, erbium, and selenium—a ternary chalcogenide that exists primarily in research and developmental contexts rather than established industrial production. This material class is of interest in solid-state physics and materials science for its potential in ionic conductivity, optical properties, or thermoelectric applications, though LiErSe2 specifically remains largely experimental. Engineers and researchers exploring advanced ceramics for energy storage, optoelectronics, or high-temperature applications may evaluate this compound as part of broader screening efforts, particularly in settings where rare-earth doping or lithium-based ionic frameworks are strategically valuable.

experimental solid-state researchionic conductor developmentrare-earth ceramicschalcogenide opticsthermoelectric materials screeningadvanced energy storage systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	63.97	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	41.60	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.117	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	1.649	eV	DFT · OptB88vdW
↳	2.250	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	20.40	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	7.305	-	DFT · OptB88vdW
↳	6.056	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.4367	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.353	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	0.00276	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00214	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-213.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	270.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	17.67	%	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)	0.06360	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.718	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.

LiErSe2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental