Cu4Dy4K2Se9
Cu4Dy4K2Se9 is a thermodynamically stable quaternary semiconductor composed of copper, dysprosium, potassium, and selenium.
About Cu4Dy4K2Se9
Cu4Dy4K2Se9 is a complex quaternary selenide that occupies a stable position on the thermodynamic convex hull. As a semiconducting material, it represents a specialized arrangement of copper, dysprosium, potassium, and selenium atoms that is structurally distinct from simpler binary or ternary chalcogenides.
Its existence as a stable phase across multiple structural reports highlights its significance in solid-state chemistry. This compound serves as a model for understanding how rare-earth elements and alkali metals can be integrated into complex selenide frameworks to tune electronic behavior.
Key Properties
Cross-validated computational properties for Cu4Dy4K2Se9, 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 Cu4Dy4K2Se9 is used.
Frequently Asked Questions
Common questions about Cu4Dy4K2Se9, answered from cross-validated data.
What is Cu4Dy4K2Se9?
Cu4Dy4K2Se9 is a thermodynamically stable quaternary semiconductor composed of copper, dysprosium, potassium, and selenium.
What is Cu4Dy4K2Se9 used for?
What is the band gap of Cu4Dy4K2Se9?
Is Cu4Dy4K2Se9 a metal, semiconductor, or insulator?
Is Cu4Dy4K2Se9 thermodynamically stable?
How many polymorphs of Cu4Dy4K2Se9 are known?
What elements does Cu4Dy4K2Se9 contain?
Where does the data for Cu4Dy4K2Se9 come from?
How It Compares
As a unique quaternary selenide, Cu4Dy4K2Se9 stands as a specialized entry in the broader family of chalcogenide semiconductors, providing a distinct structural template that differentiates it from more common, simpler metal-selenide systems.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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