NiS2
vaesite · nickel disulfide
Vaesite is a stable, naturally occurring nickel disulfide semiconductor known for its pyrite-like crystal structure.
About vaesite
Vaesite is a naturally occurring nickel disulfide that crystallizes in a pyrite-type structure. As a thermodynamically stable compound, it maintains a robust structural integrity that makes it a significant subject for solid-state chemistry and mineralogical studies.
This semiconducting material is highly valued in research for its distinct electronic properties. Due to its extensive documentation across numerous structural databases, it serves as a foundational reference point for understanding metal-chalcogenide bonding and electronic behavior.
Key Properties
Cross-validated computational properties for vaesite, aggregated across 5 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 NiS2.
Applications
Where vaesite is used.
Frequently Asked Questions
Common questions about vaesite, answered from cross-validated data.
What is NiS2?
Vaesite is a stable, naturally occurring nickel disulfide semiconductor known for its pyrite-like crystal structure.
What is NiS2 used for?
What is the band gap of NiS2?
Is NiS2 a metal, semiconductor, or insulator?
Is NiS2 thermodynamically stable?
How many polymorphs of NiS2 are known?
How is NiS2 synthesized?
What elements does NiS2 contain?
Where does the data for NiS2 come from?
How It Compares
As a prominent nickel-based chalcogenide, vaesite represents a stable and well-characterized archetype within the broader family of transition metal disulfides, providing a critical benchmark for studying semiconducting behavior in pyrite-structured minerals.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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