ErF3 — Properties & Data | MatWorld

ErF3

Name: ErF3
Brand: MatWorld

ceramic

· ErF3

Erbium fluoride (ErF3) is an inorganic ceramic compound belonging to the rare-earth fluoride family, characterized by its ionic crystal structure and high chemical stability. It is primarily used in optics, photonics, and specialized laser applications where its transparent window in the infrared spectrum is valuable, as well as in nuclear fuel processing and as a raw material for producing erbium-doped optical fibers and amplifiers. Engineers select ErF3 when compatibility with fluoride-based optical systems or high-temperature corrosion resistance in fluorine-rich environments is required; however, its use is largely confined to advanced research and specialty industries rather than general structural applications.

infrared opticsfiber optic amplifierslaser materialsnuclear fuel processinghigh-temperature fluoride systemsphotonics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2861	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	8.094	eV	DFT · OptB88vdW
↳	10.01	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	14.69	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.686	-	DFT · OptB88vdW
↳	2.262	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000749	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000369	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-172.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	494	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-4.377	eV/atom	DFT · OptB88vdW
↳	-4.463	eV/atom	Measured

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

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.

ErF3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental