As4Se3
As4Se3 is a semiconducting arsenic selenide that exists in several structural forms and is considered a prime candidate for laboratory synthesis.
About As4Se3
As4Se3 is a binary semiconductor composed of arsenic and selenium. Its structural diversity is highlighted by numerous reported configurations across various databases, indicating a complex landscape for its atomic arrangement.
Because it sits near the thermodynamic hull, the compound is considered a viable target for experimental synthesis. Its electronic character makes it an intriguing subject for investigating the fundamental properties of chalcogenide-based semiconductors.
Key Properties
Cross-validated computational properties for As4Se3, aggregated across 4 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 As4Se3 is used.
Frequently Asked Questions
Common questions about As4Se3, answered from cross-validated data.
What is As4Se3?
As4Se3 is a semiconducting arsenic selenide that exists in several structural forms and is considered a prime candidate for laboratory synthesis.
What is As4Se3 used for?
What is the band gap of As4Se3?
Is As4Se3 a metal, semiconductor, or insulator?
Is As4Se3 thermodynamically stable?
How many polymorphs of As4Se3 are known?
What elements does As4Se3 contain?
Where does the data for As4Se3 come from?
How It Compares
As a standalone entry in this specific compositional space, As4Se3 serves as a foundational example of how arsenic and selenium can organize into multiple stable or metastable phases. Its existence as a near-hull material positions it as a critical reference point for understanding the structural stability limits of similar semiconducting chalcogenides.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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