V2O3
vanadium(III) oxide · vanadium sesquioxide
V2O3 is a thermodynamically stable, semiconducting vanadium oxide used as a key material in the study of refractory-metal oxide properties.

About vanadium(III) oxide
Vanadium(III) oxide is a prominent refractory-metal oxide known for its robust thermodynamic stability. As a semiconducting material, it serves as a foundational compound in the study of transition metal oxides, characterized by its reliable structural integrity across numerous experimental observations.
The material is highly regarded in the field of materials science due to its well-defined crystalline phases. Its electronic properties make it a subject of significant interest for researchers developing next-generation functional devices that rely on the precise control of charge transport and structural transitions.
Key Properties
Cross-validated computational properties for vanadium(III) 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 V2O3.
Applications
Where vanadium(III) oxide is used.
Frequently Asked Questions
Common questions about vanadium(III) oxide, answered from cross-validated data.
What is V2O3?
V2O3 is a thermodynamically stable, semiconducting vanadium oxide used as a key material in the study of refractory-metal oxide properties.
What is V2O3 used for?
What is the band gap of V2O3?
Is V2O3 a metal, semiconductor, or insulator?
Is V2O3 thermodynamically stable?
How many polymorphs of V2O3 are known?
How is V2O3 synthesized?
What elements does V2O3 contain?
Where does the data for V2O3 come from?
How It Compares
Within the electrochromic and refractory-metal oxides class.
Within the family of refractory-metal oxides, V2O3 occupies a distinct niche compared to its more highly oxidized sibling V2O5. While V2O5 is frequently utilized for its rapid electrochromic switching and catalytic potential, V2O3 provides a more stable, lower-valence baseline that is essential for understanding the broader electronic behavior of the vanadium-oxygen system alongside other members like MoO2 and WO3.
Related Compounds
Other Electrochromic and Refractory-Metal Oxides in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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