TaO2
TaO2 is a metastable semiconducting oxide of tantalum characterized by a wide variety of reported structural configurations.
About TaO2
TaO2 is a tantalum-based oxide that exhibits semiconducting electronic behavior. As a metastable phase, it represents a complex structural arrangement within the tantalum-oxygen system, offering unique pathways for material synthesis and characterization.
Its existence is supported by a significant volume of structural data, making it a subject of interest for researchers investigating non-equilibrium oxide phases. The compound's electronic profile suggests potential utility in specialized semiconductor applications where specific structural metastability is required.
Key Properties
Cross-validated computational properties for TaO2, aggregated across 3 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 TaO2.
Applications
Where TaO2 is used.
Frequently Asked Questions
Common questions about TaO2, answered from cross-validated data.
What is TaO2?
TaO2 is a metastable semiconducting oxide of tantalum characterized by a wide variety of reported structural configurations.
What is TaO2 used for?
What is the band gap of TaO2?
Is TaO2 a metal, semiconductor, or insulator?
Is TaO2 thermodynamically stable?
How many polymorphs of TaO2 are known?
How is TaO2 synthesized?
What elements does TaO2 contain?
Where does the data for TaO2 come from?
How It Compares
As a metastable oxide, TaO2 occupies a distinct niche in the study of tantalum-oxygen compounds, serving as a critical reference point for understanding the diverse structural landscape of transition metal oxides beyond the more common stoichiometric phases.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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