CoSi2
Cobalt disilicide · Cobalt silicide
Cobalt disilicide is a stable, metallic compound widely used in the semiconductor industry to create high-performance electrical contacts.

About Cobalt disilicide
Cobalt disilicide is a metallic silicide that occupies a stable position on the thermodynamic convex hull. Its robust structural integrity and electronic properties make it a foundational material in the study of transition metal silicides for advanced electronics.
Because of its high conductivity and compatibility with silicon substrates, this compound is primarily utilized in microelectronics. It serves as a critical component in forming low-resistance ohmic contacts and interconnects within integrated circuits.
Key Properties
Cross-validated computational properties for Cobalt disilicide, aggregated across 5 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 Cobalt disilicide is used.
Frequently Asked Questions
Common questions about Cobalt disilicide, answered from cross-validated data.
What is CoSi2?
Cobalt disilicide is a stable, metallic compound widely used in the semiconductor industry to create high-performance electrical contacts.
What is CoSi2 used for?
What is the band gap of CoSi2?
Is CoSi2 a metal, semiconductor, or insulator?
Is CoSi2 thermodynamically stable?
How many polymorphs of CoSi2 are known?
What elements does CoSi2 contain?
Where does the data for CoSi2 come from?
How It Compares
Within the silicon anode materials class.
Within the class of silicon-based materials, CoSi2 is distinguished by its metallic character, contrasting with the semiconducting nature of pure silicon or compounds like BaSi2. While materials like MoSi2 are often favored for high-temperature structural applications, CoSi2 is specifically optimized for its ability to form sharp, stable interfaces with silicon, making it a superior choice for miniaturized electronic components compared to the more brittle or less conductive silicides in the group.
Related Compounds
Other Silicon Anode Materials in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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