GaSe
Gallium selenide · Gallium(II) selenide
Gallium selenide is a stable, layered semiconductor material primarily utilized in the development of advanced optical and electronic components.
About Gallium selenide
Gallium selenide is a thermodynamically stable compound that crystallizes in a distinct layered arrangement. Its electronic character as a semiconductor makes it a highly versatile material for modern electronic and optical device research.
Because it sits firmly on the convex hull, this material is recognized for its structural reliability. It is widely investigated for its potential in high-frequency applications and light-sensitive technologies where its specific electronic properties can be effectively harnessed.
Key Properties
Cross-validated computational properties for Gallium 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of GaSe. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Synthesis Routes
Literature-extracted synthesis procedures targeting GaSe.
Applications
Where Gallium selenide is used.
Frequently Asked Questions
Common questions about Gallium selenide, answered from cross-validated data.
What is GaSe?
Gallium selenide is a stable, layered semiconductor material primarily utilized in the development of advanced optical and electronic components.
What is GaSe used for?
What is the band gap of GaSe?
Is GaSe a metal, semiconductor, or insulator?
Is GaSe thermodynamically stable?
How many polymorphs of GaSe are known?
How is GaSe synthesized?
What elements does GaSe contain?
Where does the data for GaSe come from?
How It Compares
As a standalone material in this context, gallium selenide serves as a benchmark for layered semiconductor performance. Its stability and well-documented structural diversity across numerous databases underscore its importance as a foundational material for future semiconductor engineering.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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