Erbium oxide (Er₂O₃) is a rare-earth ceramic compound belonging to the lanthanide oxide family, valued for its optical and thermal properties in advanced applications. It is primarily used in fiber-optic amplifiers for telecommunications, phosphors for displays and lighting, and as a dopant in laser crystals for medical and industrial cutting systems. Engineers select Er₂O₃ when high refractive index combined with transparency in the infrared spectrum is required, or when rare-earth luminescence properties are critical for signal amplification and wavelength conversion in photonic devices.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 23,568.6 | ksi | — | ||
Poisson's Ratio(ν) | 0.3400 | - | — | ||
Shear Modulus(G) | 10,492 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.3104 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 5.420 | eV | — | ||
| ↳ | 1.559 | eV | — | ||
| ↳ | 2.924 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 18.90 | - | — | ||
Magnetic Moment(μB)2 entries | 0.000 | μB | — | ||
| ↳ | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -248 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1355 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -2.947 | eV/atom | — | ||
| ↳ | -3.934 | eV/atom | — | ||
| ↳ | -3.754 | eV/atom | — |