BeC2
BeC2 is a wide-gap insulating beryllium carbide that exists as a metastable phase with a high degree of structural complexity.
About BeC2
BeC2 is a beryllium carbide compound characterized by its wide-gap insulating electronic nature. Due to its position above the thermodynamic hull, it is considered a metastable phase that requires specific conditions for synthesis and stabilization.
This material is a subject of extensive theoretical interest, with a vast array of predicted structural configurations identified across major materials databases. Its study contributes to the broader understanding of bonding behaviors in light-element carbides and the potential for novel carbon-based frameworks.
Key Properties
Cross-validated computational properties for BeC2, 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 BeC2 is used.
Frequently Asked Questions
Common questions about BeC2, answered from cross-validated data.
What is BeC2?
BeC2 is a wide-gap insulating beryllium carbide that exists as a metastable phase with a high degree of structural complexity.
What is BeC2 used for?
What is the band gap of BeC2?
Is BeC2 a metal, semiconductor, or insulator?
Is BeC2 thermodynamically stable?
How many polymorphs of BeC2 are known?
What elements does BeC2 contain?
Where does the data for BeC2 come from?
How It Compares
As a member of the beryllium-carbon system, BeC2 represents a unique structural challenge compared to more stable, naturally occurring carbide phases. Its high structural diversity suggests complex potential energy landscapes that distinguish it from simpler, more thermodynamically favored binary compounds.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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