LiGaSe2 — Properties & Data | MatWorld

LiGaSe2

Name: LiGaSe2
Brand: MatWorld

semiconductor

· LiGaSe2

LiGaSe2 is a ternary semiconductor compound combining lithium, gallium, and selenium, belonging to the family of III–VI semiconductors with potential for optoelectronic and nonlinear optical applications. This material remains primarily in research and development phases, explored for its wide bandgap characteristics and crystal structure properties that could enable ultraviolet-to-infrared photonic devices, particularly in the mid-infrared spectral region where conventional semiconductors have limitations. Engineers and researchers investigate LiGaSe2 as a candidate for frequency conversion, laser generation, and advanced optical sensing systems where its nonlinear optical properties and transparency windows offer advantages over more established alternatives like GaAs or InP.

nonlinear optical devicesmid-infrared opticsfrequency conversionresearch photonicslaser applicationsultraviolet detectors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,499.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	2,681.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1495	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	2.094	eV	DFT · OptB88vdW
↳	3.419	eV	DFT · TBmBJ
↳	3.130	eV	Measured
Dielectric Constant (Relative Permittivity)(εr)	9.020	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.546	-	DFT · OptB88vdW
↳	5.042	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.2800	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.417	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.5479	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000638	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00134	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-101.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	256.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	1.630	%	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)	-0.9371	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

Export Control

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.

LiGaSe2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control