ErI3 — Properties & Data | MatWorld

ErI3

ceramic

· JVASP-33829· ErI3

Erbium iodide (ErI₃) is an ionic ceramic compound belonging to the rare-earth halide family, characterized by strong ionic bonding between trivalent erbium cations and iodide anions. While primarily a research and specialty material rather than a commodity engineering ceramic, ErI₃ appears in optical and electronic applications where rare-earth halides serve as host materials for photoluminescent ions, laser gain media, or scintillation detectors; it is notably employed in infrared optics and as a precursor in vapor-phase synthesis of erbium oxide ceramics for high-temperature applications. Engineers considering this material should recognize it as a lower-volume, application-specific choice suited to photonic and radiation-detection systems where erbium's electronic properties are leveraged, rather than a general structural ceramic.

optical/photonic materialsinfrared opticslaser gain mediascintillation detectorsrare-earth halide precursorsresearch ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	12.48	GPa	DFT · OptB88vdW
Shear Modulus(G)	5.150	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.849	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.773	eV	DFT · OptB88vdW
↳	2.559	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	11.82	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.541	-	DFT · OptB88vdW
↳	3.699	-	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	0.00154	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00164	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-172.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	258.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	11.52	%	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)	-1.312	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.

ErI3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental