BaGa4S7 — Properties & Data | MatWorld

BaGa4S7

Name: BaGa4S7
Brand: MatWorld

semiconductor

· BaGa4S7

BaGa₄S₇ is a barium gallium sulfide compound belonging to the chalcogenide semiconductor family, characterized by a wide bandgap and strong nonlinear optical properties. This is a research-phase material primarily investigated for infrared photonics and frequency conversion applications, where its transparency in the mid-to-far infrared range and second-order nonlinear response offer advantages over more established alternatives like zinc selenide or gallium arsenide. The material remains largely confined to academic and specialized optics development rather than high-volume manufacturing, making it relevant for engineers designing novel infrared optical systems, parametric amplifiers, or laser frequency conversion devices.

nonlinear optical devicesinfrared frequency conversionmid-IR optical windowsparametric amplificationresearch photonicswide-bandgap semiconductors

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1389	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	3.540	eV	Measured
↳	2.454	eV	DFT · OptB88vdW
↳	3.392	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	13.64	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.567	-	DFT · OptB88vdW
↳	5.441	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.5474	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00201	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00103	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-164.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	369.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	1.770	%	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)	-1.067	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.

BaGa4S7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control