Au2Se2
Au2Se2 is a stable, semiconducting compound composed of gold and selenium that is frequently studied for its diverse structural configurations.
About Au2Se2
Au2Se2 is a thermodynamically stable gold selenide that sits firmly on the convex hull, indicating significant structural robustness. As a semiconducting material, it offers a unique electronic profile that distinguishes it from purely metallic gold alloys or insulating selenides.
The compound is characterized by a high degree of structural diversity, with numerous reported configurations across major materials databases. This extensive data availability highlights its importance as a subject of fundamental research in chalcogenide chemistry and potential semiconductor applications.
Key Properties
Cross-validated computational properties for Au2Se2, 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 Au2Se2 is used.
Frequently Asked Questions
Common questions about Au2Se2, answered from cross-validated data.
What is Au2Se2?
Au2Se2 is a stable, semiconducting compound composed of gold and selenium that is frequently studied for its diverse structural configurations.
What is Au2Se2 used for?
What is the band gap of Au2Se2?
Is Au2Se2 a metal, semiconductor, or insulator?
Is Au2Se2 thermodynamically stable?
How many polymorphs of Au2Se2 are known?
What elements does Au2Se2 contain?
Where does the data for Au2Se2 come from?
How It Compares
As a distinct binary compound, Au2Se2 serves as a foundational example of gold-based chalcogenide stability. Without direct siblings in this specific classification, it represents a standalone reference point for understanding how gold and selenium interact to form stable, semiconducting crystalline frameworks.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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