Ce2Ta2O9
Ce2Ta2O9 is a metastable, semiconducting oxide containing cerium and tantalum that is primarily studied for its structural diversity.
About Ce2Ta2O9
Ce2Ta2O9 is a complex oxide composed of cerium, tantalum, and oxygen. As a semiconducting material, it represents a specialized inorganic phase that bridges the properties of rare-earth oxides and transition metal tantalates.
Due to its metastable nature, this compound is of significant interest for fundamental materials research. It is characterized by a diverse structural landscape, with multiple distinct configurations documented across various computational databases.
Key Properties
Cross-validated computational properties for Ce2Ta2O9, 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.
Applications
Where Ce2Ta2O9 is used.
Frequently Asked Questions
Common questions about Ce2Ta2O9, answered from cross-validated data.
What is Ce2Ta2O9?
Ce2Ta2O9 is a metastable, semiconducting oxide containing cerium and tantalum that is primarily studied for its structural diversity.
What is Ce2Ta2O9 used for?
What is the band gap of Ce2Ta2O9?
Is Ce2Ta2O9 a metal, semiconductor, or insulator?
Is Ce2Ta2O9 thermodynamically stable?
How many polymorphs of Ce2Ta2O9 are known?
What elements does Ce2Ta2O9 contain?
Where does the data for Ce2Ta2O9 come from?
How It Compares
As a unique member of the cerium-tantalum-oxygen system, this compound serves as a distinct example of metastable phase formation in complex oxides. It provides a specialized case study for understanding how cerium and tantalum interact within an oxygen-rich lattice to produce semiconducting behavior.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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