VO2
Vanadium dioxide · Vanadium(IV) oxide
Vanadium dioxide is a stable, semiconducting metal oxide widely utilized in the development of smart, switchable electrochromic materials.
About Vanadium dioxide
Vanadium dioxide is a prominent member of the refractory-metal oxide family, recognized for its robust thermodynamic stability as a phase on the convex hull. This material is highly valued in materials science due to its distinct semiconducting nature and its ability to undergo significant structural transitions, making it a focal point for advanced optical and electronic research.
Its utility is primarily driven by its electrochromic performance, which allows for dynamic control over light and heat transmission. As a heavily studied compound with hundreds of reported structures, it serves as a foundational material for developing smart coatings and responsive devices that require high durability and precise electronic switching capabilities.
Key Properties
Cross-validated computational properties for Vanadium dioxide, 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 VO2.
Applications
Where Vanadium dioxide is used.
Patent Landscape
5 patents reference VO2 or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 9975804 | Continuous flow synthesis of VO2 nanoparticles or nanorods by using a microreactor | — | — |
| 12037258 | Process for rapidly manufacturing ultrasmall phase-change VO2 nanomaterial | — | — |
| 4965150 | Preparation of VO.sub.2 (B) and a non-aqueous secondary cell using VO.sub.2 | — | — |
| 5885665 | VO.sub.2 precipitates for self-protected optical surfaces | — | — |
| 10479900 | VO2 and V2O5 nano- and micro-materials and processes of making and uses of same | — | — |
Frequently Asked Questions
Common questions about Vanadium dioxide, answered from cross-validated data.
What is VO2?
Vanadium dioxide is a stable, semiconducting metal oxide widely utilized in the development of smart, switchable electrochromic materials.
What is VO2 used for?
What is the band gap of VO2?
Is VO2 a metal, semiconductor, or insulator?
Is VO2 thermodynamically stable?
How many polymorphs of VO2 are known?
How is VO2 synthesized?
What elements does VO2 contain?
Where does the data for VO2 come from?
How It Compares
Within the electrochromic and refractory-metal oxides class.
Within the class of refractory-metal oxides, VO2 occupies a unique niche compared to siblings like V2O5 or WO3. While V2O5 is frequently utilized for its catalytic and electrochemical storage properties, VO2 is distinguished by its specific phase-change characteristics that facilitate rapid switching, setting it apart from the more static insulating or conducting behaviors seen in other molybdenum and niobium oxides.
Related Compounds
Other Electrochromic and Refractory-Metal Oxides in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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