AsS2
AsS2 is a metastable semiconducting compound composed of arsenic and sulfur that is primarily studied for its structural complexity and electronic properties.
About AsS2
AsS2 is a metastable arsenic sulfide compound that exhibits semiconducting electronic properties. As a member of the arsenic-sulfur system, it represents a complex material with significant structural diversity, as evidenced by the numerous reported configurations found across major crystallographic databases.
Its metastable nature makes it a subject of interest for researchers studying phase transitions and the synthesis of non-equilibrium materials. Understanding the bonding environment in this compound provides critical insights into the broader behavior of chalcogenide semiconductors used in optoelectronics and specialized sensing technologies.
Key Properties
Cross-validated computational properties for AsS2, 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 AsS2 is used.
Frequently Asked Questions
Common questions about AsS2, answered from cross-validated data.
What is AsS2?
AsS2 is a metastable semiconducting compound composed of arsenic and sulfur that is primarily studied for its structural complexity and electronic properties.
What is AsS2 used for?
What is the band gap of AsS2?
Is AsS2 a metal, semiconductor, or insulator?
Is AsS2 thermodynamically stable?
How many polymorphs of AsS2 are known?
What elements does AsS2 contain?
Where does the data for AsS2 come from?
How It Compares
As a unique arsenic sulfide, AsS2 occupies a distinct position in the landscape of chalcogenide materials. While it lacks direct structural siblings in this context, its metastability and semiconducting character highlight the intricate phase space of arsenic-based compounds, distinguishing it from more common, highly stable sulfides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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