AlInSb2
AlInSb2 is a semiconducting ternary compound of aluminum, indium, and antimony that is considered a promising candidate for synthesis in electronic material research.
About AlInSb2
AlInSb2 is a ternary semiconducting compound composed of aluminum, indium, and antimony. Its electronic character suggests potential utility in specialized semiconductor applications where precise band engineering is required. The material is categorized as near-hull, indicating that it is thermodynamically stable enough to be considered a viable candidate for experimental synthesis and characterization. With multiple reported structural configurations, it remains a subject of interest for researchers exploring complex antimonide-based systems. Its structural diversity provides a foundation for investigating how atomic arrangement influences the electronic properties of aluminum-indium-antimony alloys.
Key Properties
Cross-validated computational properties for AlInSb2, 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.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of AlInSb2. 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.
Reported Structures
Lowest-energy structures reported for AlInSb2, 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. |
|---|---|---|---|---|---|
| P-4m2 (No. 115) | tetragonal | 0.32 | 0.0080 | -20.418 | 4.96 |
| P-4m2 (No. 115) | tetragonal | 0.24 | 0.0099 | -0.158 | — |
| — | — | 0.64 | 0.0103 | -0.140 | — |
| R3m (No. 160) | trigonal | 0.11 | 0.0109 | -0.157 | — |
| R3m (No. 160) | trigonal | 0.24 | 0.0282 | -20.398 | 4.82 |
| — | — | 0.00 | 0.3440 | 0.193 | — |
Applications
Where AlInSb2 is used.
Frequently Asked Questions
Common questions about AlInSb2, answered from cross-validated data.
What is AlInSb2?
AlInSb2 is a semiconducting ternary compound of aluminum, indium, and antimony that is considered a promising candidate for synthesis in electronic material research.
What is AlInSb2 used for?
What is the band gap of AlInSb2?
Is AlInSb2 a metal, semiconductor, or insulator?
Is AlInSb2 thermodynamically stable?
What is the crystal structure of AlInSb2?
What is the density of AlInSb2?
How many polymorphs of AlInSb2 are known?
What elements does AlInSb2 contain?
Where does the data for AlInSb2 come from?
How It Compares
As a ternary antimonide, AlInSb2 occupies a unique space in materials research, serving as a bridge between simpler binary semiconductors and more complex multi-element systems. While it lacks direct siblings in this specific dataset, it functions as a critical case study for the stability and electronic behavior of aluminum-indium-antimony compounds, providing insights into the synthesis challenges and potential performance of similar ternary materials.
Data sources & attribution
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
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