Al3P
Al3P is a metallic, thermodynamically unstable aluminum-phosphorus compound that deviates from the typical semiconducting behavior of its III-V family members.
About Al3P
Al3P represents an unconventional stoichiometry within the III-V semiconductor family. Unlike its more common counterparts, this phase exhibits metallic electronic character rather than the typical semiconducting behavior associated with the group. Its existence as a metastable or unstable phase makes it a subject of significant interest for researchers studying phase stability and structural diversity in binary systems. Despite being thermodynamically unfavored, it has been documented across multiple structural databases, highlighting its role in the broader landscape of aluminum-phosphorus chemistry. This compound serves as a critical data point for understanding the limits of structural formation in III-V materials, providing insight into how composition influences electronic properties. While it lacks the wide-gap utility of its cousins, its unique metallic nature invites further investigation into its potential in specialized thin-film or high-pressure synthesis studies.
Key Properties
Cross-validated computational properties for Al3P, 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 Al3P is used.
Frequently Asked Questions
Common questions about Al3P, answered from cross-validated data.
What is Al3P?
Al3P is a metallic, thermodynamically unstable aluminum-phosphorus compound that deviates from the typical semiconducting behavior of its III-V family members.
What is Al3P used for?
What is the band gap of Al3P?
Is Al3P a metal, semiconductor, or insulator?
Is Al3P thermodynamically stable?
How many polymorphs of Al3P are known?
What elements does Al3P contain?
Where does the data for Al3P come from?
How It Compares
Within the iii-v semiconductors class.
In contrast to standard III-V semiconductors like AlP or AlN, which are well-known for their wide-gap insulating or semiconducting properties, Al3P deviates significantly by exhibiting metallic behavior. While siblings such as AlAs and GaP are stable, well-behaved materials used extensively in optoelectronics, Al3P remains a structurally complex outlier that sits above the thermodynamic hull, reflecting the distinct structural preferences of this specific aluminum-rich stoichiometry.
Related Compounds
Other III-V Semiconductors in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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