As4O20Sb4
As4O20Sb4 is a stable, semiconducting oxide composed of arsenic, antimony, and oxygen.
About As4O20Sb4
As4O20Sb4 is a complex oxide featuring arsenic and antimony, characterized by its semiconducting electronic nature. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural arrangement that is of significant interest for fundamental materials research.
Given its status as a stable compound with multiple documented structural variations across databases, it serves as a key subject for understanding the interplay between p-block elements in oxide frameworks. Its unique composition makes it a valuable candidate for exploring specialized electronic applications.
Key Properties
Cross-validated computational properties for As4O20Sb4, 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 As4O20Sb4, 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. |
|---|---|---|---|---|---|
| P212121 (No. 19) | orthorhombic | 1.76 | 0.0000 | -6.524 | 4.60 |
| P212121 (No. 19) | orthorhombic | 0.58 | 0.1782 | -6.346 | 4.51 |
| No. 0 | unknown | — | — | — | 1.17 |
| P212121 (No. 19) | — | — | — | — | — |
| — | — | — | — | — | 3.46 |
Applications
Where As4O20Sb4 is used.
Frequently Asked Questions
Common questions about As4O20Sb4, answered from cross-validated data.
What is As4O20Sb4?
As4O20Sb4 is a stable, semiconducting oxide composed of arsenic, antimony, and oxygen.
What is As4O20Sb4 used for?
What is the band gap of As4O20Sb4?
Is As4O20Sb4 a metal, semiconductor, or insulator?
Is As4O20Sb4 thermodynamically stable?
What is the crystal structure of As4O20Sb4?
What is the density of As4O20Sb4?
How many polymorphs of As4O20Sb4 are known?
What elements does As4O20Sb4 contain?
Where does the data for As4O20Sb4 come from?
How It Compares
As a thermodynamically stable oxide, this compound occupies a distinct position within the landscape of arsenic-antimony-oxygen systems, where it serves as a benchmark for structural stability and semiconducting behavior in complex multi-element oxides.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- 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).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
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