La2O3
semiconductor· La2O3
Lanthanum oxide (La₂O₃) is a rare-earth ceramic compound belonging to the lanthanide oxide family, valued for its wide bandgap and high refractive index. It is employed primarily in optical coatings, phosphor applications, and as a high-k dielectric material in advanced semiconductor devices, where it enables miniaturization and improved electrical performance compared to conventional silicon dioxide. The material is also investigated for potential use in solid-state electrolytes and thermal barrier coatings, making it particularly relevant for applications requiring exceptional thermal stability and dielectric properties.
optical coatings and lenseshigh-k gate dielectalsphosphor dopantssolid-state battery electrolytesthermal barrier coatingsadvanced semiconductor manufacturing
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 18,237 | ksi | — | ||
Poisson's Ratio(ν) | 0.3300 | - | — | ||
Shear Modulus(G) | 7,546.3 | ksi | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2050 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 5.400 | eV | — | ||
| ↳ | 0.5950 | eV | — | ||
| ↳ | 0.8390 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 15.73 range 4.867–26.59median of 2 measurements | - | — | ||
Magnetic Moment(μB)2 entries | 0.000 | μB | — | ||
| ↳ | 0.000 | µB | — |
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.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.9273 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -2.825 | eV/atom | — | ||
| ↳ | -3.721 | eV/atom | — | ||
| ↳ | -2.792 | eV/atom | — |
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.
Verified Unverified Low confidence (<80%) Link to source
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.