Na2GeF6

ceramic

· JVASP-13867· Na2GeF6

Sodium hexafluorogermanate (Na2GeF6) is an inorganic ceramic compound belonging to the fluoride family, characterized by a dense crystal structure combining sodium, germanium, and fluorine elements. This material is primarily investigated for optical and photonic applications, particularly as a host matrix for rare-earth ion doping in laser and luminescence systems, and as a component in fluoride glass formulations where its chemical stability and optical transparency are advantageous. Na2GeF6 is notably used in research contexts for solid-state lasers and up-conversion phosphor applications, offering advantages over traditional oxides in mid-infrared transparency and lower phonon energies that enhance rare-earth ion fluorescence efficiency.

rare-earth laser hostsfluoride optical ceramicsphotonic materials researchsolid-state laser developmentluminescent phosphor matricesinfrared transmitting optics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,913.2	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)	3,057.4	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1179	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	5.888	eV	DFT · OptB88vdW
↳	9.134	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	5.423	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	1.966	-	DFT · OptB88vdW
↳	1.551	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.02030	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00105	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000464	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-173.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	524.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.04430	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.767	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.

Na2GeF6 — Properties & Data | MatWorld

Na2GeF6

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental