Al3BN4
Al3BN4 is a wide-gap ternary nitride semiconductor that exists as a metastable phase within the aluminum-boron-nitrogen material system.

About Al3BN4
Al3BN4 is a complex nitride semiconductor characterized by a wide-gap electronic structure. As a ternary compound within the aluminum-boron-nitrogen system, it represents a niche material class that bridges the properties of binary nitrides with more intricate structural arrangements.
While its thermodynamic stability is limited, placing it above the hull, the compound remains a subject of interest for researchers investigating new semiconductor phases. Its electronic nature as an insulator suggests potential applications in specialized dielectric or high-performance electronic environments where wide-gap materials are required.
Key Properties
Cross-validated computational properties for Al3BN4, 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 Al3BN4 is used.
Frequently Asked Questions
Common questions about Al3BN4, answered from cross-validated data.
What is Al3BN4?
Al3BN4 is a wide-gap ternary nitride semiconductor that exists as a metastable phase within the aluminum-boron-nitrogen material system.
What is Al3BN4 used for?
What is the band gap of Al3BN4?
Is Al3BN4 a metal, semiconductor, or insulator?
Is Al3BN4 thermodynamically stable?
How many polymorphs of Al3BN4 are known?
What elements does Al3BN4 contain?
Where does the data for Al3BN4 come from?
How It Compares
Within the nitride semiconductors class.
Unlike the highly stable and technologically ubiquitous AlN or GaN, Al3BN4 is a more exotic and less thermodynamically favored phase. While BN and AlN serve as foundational building blocks for modern optoelectronics, Al3BN4 represents a more complex, metastable variation that highlights the diverse structural possibilities within the nitride semiconductor family.
Related Compounds
Other Nitride Semiconductors in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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