Al2Se3
aluminum selenide · dialuminum triselenide
Aluminum selenide is a thermodynamically stable semiconducting compound composed of aluminum and selenium.
About aluminum selenide
Aluminum selenide is a semiconducting material characterized by its thermodynamic stability on the convex hull. Its structural versatility is highlighted by a significant number of reported configurations across major materials databases, reflecting its complex potential for solid-state chemistry.
As a binary chalcogenide, this compound serves as a critical subject for fundamental research into aluminum-based semiconductors. Its stable nature makes it a compelling candidate for exploring electronic and optical phenomena in materials science.
Key Properties
Cross-validated computational properties for aluminum selenide, 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 aluminum selenide is used.
Frequently Asked Questions
Common questions about aluminum selenide, answered from cross-validated data.
What is Al2Se3?
Aluminum selenide is a thermodynamically stable semiconducting compound composed of aluminum and selenium.
What is Al2Se3 used for?
What is the band gap of Al2Se3?
Is Al2Se3 a metal, semiconductor, or insulator?
Is Al2Se3 thermodynamically stable?
How many polymorphs of Al2Se3 are known?
What elements does Al2Se3 contain?
Where does the data for Al2Se3 come from?
How It Compares
As a distinct binary semiconductor, aluminum selenide occupies a unique position in materials research, serving as a foundational reference point for studying the electronic behavior of aluminum-chalcogen systems where structural diversity is a defining feature.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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