BaAg2GeSe4 — Properties & Data | MatWorld

BaAg2GeSe4

Name: BaAg2GeSe4
Brand: MatWorld

metal

· JVASP-56315· BaAg2GeSe4

BaAg₂GeSe₄ is a quaternary chalcogenide compound combining barium, silver, germanium, and selenium—a member of the metal chalcogenide family with mixed-valence metallic character. This is a research-phase material investigated primarily for nonlinear optical and photonic applications, where the combination of heavy elements and chalcogenide structure offers potential for mid-infrared transparency and second-harmonic generation. Engineers and materials scientists are exploring such compounds for specialized optoelectronic devices where conventional semiconductors or oxides cannot meet performance requirements in specific wavelength windows.

infrared optics and photonicsnonlinear optical devicesmid-IR transparent materialsresearch and development compoundssemiconductor substitutes (specialized applications)frequency conversion applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2041	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.2730	eV	DFT · OptB88vdW
↳	0.8850	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	22.25	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	8.906	-	DFT · OptB88vdW
↳	6.795	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.3592	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00114	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000672	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-130.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	103.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	29.11	%	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)	-0.7309	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.

BaAg2GeSe4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control