KBiS2
KBiS2 is a stable semiconducting ternary sulfide composed of potassium, bismuth, and sulfur.

About KBiS2
KBiS2 is a ternary sulfide compound that exhibits semiconducting electronic behavior. As a thermodynamically stable phase located on the convex hull, it represents a robust material configuration that has garnered significant interest for structural analysis across multiple databases.
Its composition of potassium, bismuth, and sulfur provides a unique platform for investigating electronic transport and optical properties. The stability of this compound makes it a compelling candidate for fundamental research into complex chalcogenide systems.
Key Properties
Cross-validated computational properties for KBiS2, 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 KBiS2 is used.
Frequently Asked Questions
Common questions about KBiS2, answered from cross-validated data.
What is KBiS2?
KBiS2 is a stable semiconducting ternary sulfide composed of potassium, bismuth, and sulfur.
What is KBiS2 used for?
What is the band gap of KBiS2?
Is KBiS2 a metal, semiconductor, or insulator?
Is KBiS2 thermodynamically stable?
How many polymorphs of KBiS2 are known?
What elements does KBiS2 contain?
Where does the data for KBiS2 come from?
How It Compares
As a distinct ternary sulfide, KBiS2 serves as a foundational example of stable bismuth-based semiconductors, providing a benchmark for exploring the structural diversity and electronic potential of similar chalcogenide materials.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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