RbV3O8
RbV3O8 is a stable, semiconducting ternary oxide composed of rubidium, vanadium, and oxygen.
About RbV3O8
RbV3O8 is a thermodynamically stable oxide compound containing rubidium and vanadium. As a semiconducting material, it exhibits electronic properties that make it a subject of interest for researchers investigating complex ternary oxide systems. Its position on the convex hull indicates high structural stability under standard conditions. The compound has been characterized across multiple structural databases, reflecting its significance in solid-state chemistry research. It serves as a model system for understanding the interplay between alkali metal cations and vanadium-oxygen frameworks, which are essential for developing functional electronic and electrochemical materials.
Key Properties
Cross-validated computational properties for RbV3O8, 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.
Reported Structures
Lowest-energy structures reported for RbV3O8, 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/m (No. 11) | monoclinic | 2.07 | 0.0000 | -8.020 | 3.68 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.36 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.66 |
| P21/m (No. 11) | Monoclinic | — | — | — | 3.43 |
| P21/m (No. 11) | — | — | — | — | — |
| P21/m (No. 11) | — | — | — | — | — |
Applications
Where RbV3O8 is used.
Frequently Asked Questions
Common questions about RbV3O8, answered from cross-validated data.
What is RbV3O8?
RbV3O8 is a stable, semiconducting ternary oxide composed of rubidium, vanadium, and oxygen.
What is RbV3O8 used for?
What is the band gap of RbV3O8?
Is RbV3O8 a metal, semiconductor, or insulator?
Is RbV3O8 thermodynamically stable?
What is the crystal structure of RbV3O8?
What is the density of RbV3O8?
How many polymorphs of RbV3O8 are known?
What elements does RbV3O8 contain?
Where does the data for RbV3O8 come from?
How It Compares
As a distinct ternary oxide, RbV3O8 represents a specific structural arrangement within the broader family of rubidium vanadates. It occupies a unique niche in materials research, providing a stable platform for exploring how the inclusion of rubidium ions influences the semiconducting behavior of the vanadium oxide lattice compared to simpler binary vanadium oxides.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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