O14V8
O14V8 is a metastable semiconducting vanadium oxide used in the study of transition metal oxide phase behavior and electrochromic properties.
About O14V8
O14V8 is a semiconducting vanadium oxide that exists as a metastable phase within the broader family of refractory-metal oxides. Its electronic properties and structural flexibility make it a subject of interest for researchers investigating the fundamental behavior of transition metal oxides under varying conditions. The compound is characterized by a significant degree of structural diversity, as evidenced by the numerous reported configurations found in material databases. This complexity highlights its role as a nuanced member of the vanadium-oxygen system, contributing to the understanding of phase stability in electrochromic materials.
Key Properties
Cross-validated computational properties for O14V8, 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 O14V8, 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-1 (No. 2) | triclinic | 0.59 | 0.0371 | -8.943 | 4.73 |
| P-1 (No. 2) | triclinic | 0.95 | 0.1773 | -8.803 | 3.48 |
| P-1 (No. 2) | triclinic | 1.04 | 0.1895 | -8.790 | 3.88 |
| P-1 (No. 2) | triclinic | 1.02 | 0.2130 | -8.767 | 4.02 |
| P-1 (No. 2) | triclinic | 0.36 | 0.2153 | -8.765 | 3.93 |
| P-1 (No. 2) | triclinic | 0.31 | 0.2201 | -8.760 | 4.64 |
| P-1 (No. 2) | triclinic | 0.00 | 0.4156 | -8.564 | 2.12 |
| P-1 (No. 2) | triclinic | 1.31 | 0.5156 | -8.464 | 4.06 |
| — | — | — | — | — | 3.88 |
| — | — | — | — | — | 2.01 |
| P-1 (No. 2) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 2.43 |
Applications
Where O14V8 is used.
Frequently Asked Questions
Common questions about O14V8, answered from cross-validated data.
What is O14V8?
O14V8 is a metastable semiconducting vanadium oxide used in the study of transition metal oxide phase behavior and electrochromic properties.
What is O14V8 used for?
What is the band gap of O14V8?
Is O14V8 a metal, semiconductor, or insulator?
Is O14V8 thermodynamically stable?
What is the crystal structure of O14V8?
What is the density of O14V8?
How many polymorphs of O14V8 are known?
What elements does O14V8 contain?
Where does the data for O14V8 come from?
How It Compares
Within the electrochromic and refractory-metal oxides class.
Within the class of electrochromic and refractory-metal oxides, O14V8 occupies a more specialized niche compared to the widely utilized V2O5. While V2O5 is frequently employed due to its well-documented electrochemical performance, O14V8 represents a metastable alternative that offers different structural insights, distinguishing it from the more common binary oxides like MoO3 or WO3.
Related Compounds
Other Electrochromic and Refractory-Metal Oxides in the database.
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).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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