Al16K16Sb24
Al16K16Sb24 is a thermodynamically stable semiconducting ternary compound containing aluminum, potassium, and antimony.
About Al16K16Sb24
Al16K16Sb24 is a complex ternary compound composed of aluminum, potassium, and antimony. As a thermodynamically stable phase located on the convex hull, it represents a robust structural arrangement of these elements that is well-suited for systematic study in solid-state chemistry.
This material exhibits semiconducting electronic character, making it an interesting candidate for research into electronic and optoelectronic applications. Its existence across multiple reported structures suggests a versatile lattice that warrants further investigation into its physical behavior.
Key Properties
Cross-validated computational properties for Al16K16Sb24, 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.
Reported Structures
Lowest-energy structures reported for Al16K16Sb24, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 1.34 | 0.0000 | -15.151 | 3.65 |
| — | — | — | — | — | 3.19 |
| P21/c (No. 14) | monoclinic | — | — | — | 0.93 |
| P21/c (No. 14) | — | — | — | — | — |
Applications
Where Al16K16Sb24 is used.
Frequently Asked Questions
Common questions about Al16K16Sb24, answered from cross-validated data.
What is Al16K16Sb24?
Al16K16Sb24 is a thermodynamically stable semiconducting ternary compound containing aluminum, potassium, and antimony.
What is Al16K16Sb24 used for?
What is the band gap of Al16K16Sb24?
Is Al16K16Sb24 a metal, semiconductor, or insulator?
Is Al16K16Sb24 thermodynamically stable?
What is the crystal structure of Al16K16Sb24?
What is the density of Al16K16Sb24?
How many polymorphs of Al16K16Sb24 are known?
What elements does Al16K16Sb24 contain?
Where does the data for Al16K16Sb24 come from?
How It Compares
As a unique ternary phase, Al16K16Sb24 occupies a specialized niche in materials research. Without direct structural siblings in this specific class, it serves as a primary reference point for understanding the interplay between alkali metals and pnictogens in complex aluminum-based frameworks.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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