AlKSi2
AlKSi2 is a metastable semimetallic ternary compound consisting of aluminum, potassium, and silicon.
About AlKSi2
AlKSi2 is a ternary inorganic compound composed of aluminum, potassium, and silicon. It exhibits a near-zero-gap electronic character, placing it in the category of semimetallic materials that bridge the gap between metallic and semiconducting behavior.
As a metastable phase, this compound is of significant interest in solid-state chemistry and materials research. Its existence across multiple reported structures suggests a complex energy landscape, making it a subject of ongoing investigation for its structural diversity and potential electronic applications.
Key Properties
Cross-validated computational properties for AlKSi2, 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 AlKSi2, answered from cross-validated data.
What is AlKSi2?
AlKSi2 is a metastable semimetallic ternary compound consisting of aluminum, potassium, and silicon.
What is the band gap of AlKSi2?
Is AlKSi2 a metal, semiconductor, or insulator?
Is AlKSi2 thermodynamically stable?
How many polymorphs of AlKSi2 are known?
What elements does AlKSi2 contain?
Where does the data for AlKSi2 come from?
How It Compares
As an unclassified ternary phase, AlKSi2 serves as a distinct example of how alkali metals can be integrated into aluminum-silicon frameworks to tune electronic density near the Fermi level, representing a unique point in the phase space of these elements.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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