Na2CuO2
Na2CuO2 is a metastable semimetallic oxide compound composed of sodium, copper, and oxygen.
About Na2CuO2
Na2CuO2 is a complex oxide containing copper and sodium that exhibits near-zero-gap electronic behavior. Its semimetallic character makes it an intriguing subject for fundamental studies into the electronic structure of transition metal oxides.
As a metastable phase, this compound demonstrates significant structural flexibility, evidenced by its presence in multiple distinct crystallographic configurations across various materials databases. This structural variety highlights its potential for nuanced phase transitions under different synthesis conditions.
Key Properties
Cross-validated computational properties for Na2CuO2, 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.
Frequently Asked Questions
Common questions about Na2CuO2, answered from cross-validated data.
What is Na2CuO2?
Na2CuO2 is a metastable semimetallic oxide compound composed of sodium, copper, and oxygen.
What is the band gap of Na2CuO2?
Is Na2CuO2 a metal, semiconductor, or insulator?
Is Na2CuO2 thermodynamically stable?
How many polymorphs of Na2CuO2 are known?
What elements does Na2CuO2 contain?
Where does the data for Na2CuO2 come from?
How It Compares
As a unique oxide phase, Na2CuO2 occupies a specialized niche in materials science, serving as a critical reference point for understanding the interplay between alkali metal cations and copper-oxygen frameworks in metastable systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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