KS2Y
KS2Y is a stable, semiconducting ternary compound consisting of potassium, sulfur, and yttrium.

About KS2Y
KS2Y is a ternary inorganic compound composed of potassium, sulfur, and yttrium. As a thermodynamically stable phase residing on the convex hull, it represents a robust crystalline arrangement that is well-represented in materials databases through multiple distinct structural configurations.
This material exhibits semiconducting electronic character, making it a subject of interest for researchers investigating electronic and optoelectronic properties. Its stability and structural diversity suggest a complex interplay between its constituent elements, positioning it as a noteworthy candidate for further experimental characterization.
Key Properties
Cross-validated computational properties for KS2Y, 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 KS2Y is used.
Frequently Asked Questions
Common questions about KS2Y, answered from cross-validated data.
What is KS2Y?
KS2Y is a stable, semiconducting ternary compound consisting of potassium, sulfur, and yttrium.
What is KS2Y used for?
What is the band gap of KS2Y?
Is KS2Y a metal, semiconductor, or insulator?
Is KS2Y thermodynamically stable?
How many polymorphs of KS2Y are known?
What elements does KS2Y contain?
Where does the data for KS2Y come from?
How It Compares
As a unique ternary system, KS2Y serves as a foundational example of how alkali metals, chalcogens, and rare-earth elements can combine to form stable, semiconducting frameworks, providing a baseline for studying similar complex sulfide architectures.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze KS2Y in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →