SiS
Silicon monosulfide is a metastable semiconducting material composed of silicon and sulfur atoms.

About SiS
Silicon monosulfide is a metastable binary compound composed of silicon and sulfur. It exhibits semiconducting electronic character, positioning it as an intriguing subject for fundamental research into group 14-16 materials.
Due to its metastable nature, this compound is often studied for its structural complexity, with numerous reported configurations across various databases. Its role in materials science is primarily focused on understanding the bonding dynamics between silicon and chalcogen elements.
Key Properties
Cross-validated computational properties for SiS, 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting SiS.
Applications
Where SiS is used.
Frequently Asked Questions
Common questions about SiS, answered from cross-validated data.
What is SiS?
Silicon monosulfide is a metastable semiconducting material composed of silicon and sulfur atoms.
What is SiS used for?
What is the band gap of SiS?
Is SiS a metal, semiconductor, or insulator?
Is SiS thermodynamically stable?
How many polymorphs of SiS are known?
How is SiS synthesized?
What elements does SiS contain?
Where does the data for SiS come from?
How It Compares
As a metastable semiconductor, SiS represents a distinct phase within the silicon-sulfur binary system. While many silicon-based chalcogenides are highly stable, this specific stoichiometry offers a unique look at the structural landscape of the system, serving as an important reference point for researchers investigating the limits of silicon-sulfur bonding.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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