NaSe2
NaSe2 is a thermodynamically stable semiconducting compound formed from sodium and selenium.

About NaSe2
NaSe2 is a binary compound composed of sodium and selenium that exhibits semiconducting electronic behavior. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement within its chemical system. Its stability makes it a subject of significant interest for researchers investigating the fundamental properties of alkali metal chalcogenides. With a high volume of reported structures across multiple databases, this material is well-documented in computational studies. Its electronic character suggests potential utility in specialized semiconductor applications where specific band structures are required for device performance.
Key Properties
Cross-validated computational properties for NaSe2, 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 NaSe2 is used.
Frequently Asked Questions
Common questions about NaSe2, answered from cross-validated data.
What is NaSe2?
NaSe2 is a thermodynamically stable semiconducting compound formed from sodium and selenium.
What is NaSe2 used for?
What is the band gap of NaSe2?
Is NaSe2 a metal, semiconductor, or insulator?
Is NaSe2 thermodynamically stable?
How many polymorphs of NaSe2 are known?
What elements does NaSe2 contain?
Where does the data for NaSe2 come from?
How It Compares
As a thermodynamically stable member of the sodium-selenium system, NaSe2 serves as a foundational reference point for understanding the phase space of alkali metal selenides. It occupies a distinct position in the chemical landscape, providing a stable baseline for comparing other complex or metastable chalcogenide phases that may exist within the same elemental family.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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