Cs2S
cesium sulfide
Cesium sulfide is a stable semiconducting compound formed from cesium and sulfur that is primarily used in specialized chemical synthesis and materials research.
About cesium sulfide
Cesium sulfide is a binary inorganic compound composed of cesium and sulfur. As a thermodynamically stable material situated on the convex hull, it represents a well-defined chemical phase that maintains structural integrity under standard conditions.
This semiconducting material is of interest for its unique electronic properties and its role as a precursor in the synthesis of complex chalcogenide systems. Its stability makes it a reliable subject for fundamental studies in solid-state chemistry and materials research.
Key Properties
Cross-validated computational properties for cesium sulfide, aggregated across 2 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting Cs2S.
Applications
Where cesium sulfide is used.
Frequently Asked Questions
Common questions about cesium sulfide, answered from cross-validated data.
What is Cs2S?
Cesium sulfide is a stable semiconducting compound formed from cesium and sulfur that is primarily used in specialized chemical synthesis and materials research.
What is Cs2S used for?
What is the band gap of Cs2S?
Is Cs2S a metal, semiconductor, or insulator?
Is Cs2S thermodynamically stable?
How many polymorphs of Cs2S are known?
How is Cs2S synthesized?
What elements does Cs2S contain?
Where does the data for Cs2S come from?
How It Compares
As a binary sulfide of an alkali metal, cesium sulfide serves as a fundamental reference point for understanding the bonding and structural trends within the broader family of alkali metal chalcogenides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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