La2O3
Lanthanum oxide · Lanthanum sesquioxide
Lanthanum oxide is a stable, insulating rare-earth compound widely used in the manufacturing of specialty glass and advanced electronic components.

About Lanthanum oxide
Lanthanum oxide is a thermodynamically stable compound that serves as a foundational material in the rare-earth oxide family. Its insulating nature and structural robustness make it a critical component for high-index glass and advanced ceramic applications.
Due to its extensive research history and high structural diversity, this compound is widely utilized in industrial catalysis and as a precursor for various electronic materials. Its ability to maintain stability under diverse conditions ensures its continued relevance in modern materials science.
Key Properties
Cross-validated computational properties for Lanthanum oxide, aggregated across 4 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Synthesis Routes
Literature-extracted synthesis procedures targeting La2O3.
Applications
Where Lanthanum oxide is used.
Patent Landscape
2 patents reference La2O3 or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 10388484 | Carburized La2O3 and Lu2O3 co-doped Mo filament cathode | — | — |
| 7258707 | AI2O3-La2O3-Y2O3-MgO ceramics, and methods of making the same | — | — |
Frequently Asked Questions
Common questions about Lanthanum oxide, answered from cross-validated data.
What is La2O3?
Lanthanum oxide is a stable, insulating rare-earth compound widely used in the manufacturing of specialty glass and advanced electronic components.
What is La2O3 used for?
What is the band gap of La2O3?
Is La2O3 a metal, semiconductor, or insulator?
Is La2O3 thermodynamically stable?
How many polymorphs of La2O3 are known?
How is La2O3 synthesized?
What elements does La2O3 contain?
Where does the data for La2O3 come from?
How It Compares
As a primary lanthanum-based oxide, this compound serves as a benchmark for stability and performance within its chemical class, providing a reliable foundation for the development of more complex rare-earth material systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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