YAsS
YAsS is a thermodynamically stable semiconducting compound containing yttrium, arsenic, and sulfur.

About YAsS
YAsS is a stable ternary compound composed of yttrium, arsenic, and sulfur. As a thermodynamically stable material situated on the convex hull, it represents a robust phase within its chemical system, making it a compelling subject for structural and electronic investigations.
Its semiconducting nature suggests potential utility in electronic and optoelectronic applications where specific charge carrier behaviors are required. With multiple reported structures across various databases, it is a well-documented material that offers researchers a reliable foundation for exploring complex chalcogenide-pnictide chemistry.
Key Properties
Cross-validated computational properties for YAsS, 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 YAsS is used.
Frequently Asked Questions
Common questions about YAsS, answered from cross-validated data.
What is YAsS?
YAsS is a thermodynamically stable semiconducting compound containing yttrium, arsenic, and sulfur.
What is YAsS used for?
What is the band gap of YAsS?
Is YAsS a metal, semiconductor, or insulator?
Is YAsS thermodynamically stable?
How many polymorphs of YAsS are known?
What elements does YAsS contain?
Where does the data for YAsS come from?
How It Compares
As a unique ternary phase, YAsS serves as a distinct representative of its chemical family. While it currently stands alone in this context, its stability and semiconducting character position it as a benchmark for evaluating the properties of similar yttrium-based pnictide-chalcogenides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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