LiGaS2 — Properties & Data | MatWorld

LiGaS2

Name: LiGaS2
Brand: MatWorld

semiconductor

· LiGaS2

LiGaS2 is a ternary III-V semiconductor compound combining lithium, gallium, and sulfur, belonging to the family of wide-bandgap semiconductors used for optoelectronic and photonic applications. The material is primarily investigated in research contexts for infrared (IR) optics, nonlinear optical devices, and potentially high-voltage electronic applications due to its wide bandgap and strong nonlinear optical properties. LiGaS2 is notable for its potential in mid-to-far infrared windows where traditional semiconductors like GaAs become transparent, making it valuable for specialized optical systems and frequency conversion devices in defense, sensing, and spectroscopy industries.

infrared optics and windowsnonlinear optical devicesfrequency conversion and parametric amplificationmid-infrared spectroscopyresearch-stage optoelectronics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	6,758.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	3,385.2	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1051	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.975	eV	DFT · OptB88vdW
↳	3.760	eV	Measured
Dielectric Constant (Relative Permittivity)(εr)	8.041	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.523	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.3900	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.633	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.5560	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000931	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00131	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-146.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	279.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	-1.123	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

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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.

LiGaS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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