Ag2O3
Silver(III) oxide · Silver sesquioxide
Silver(III) oxide is an unstable inorganic compound characterized by its high oxidation state. It is primarily studied for its potential roles in advanced electrochemical systems and specialized chemical synthesis.
AgO
Overview
Key Properties
Cross-validated computational properties for Silver(III) oxide, 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.
0.35 eV
Range across DFT structures
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.
0.019 eV/atom
Best (lowest) across sources
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.
Near hull (likely stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
57
4 databases, 14 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Ag2O3, 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. |
|---|---|---|---|---|---|
| Fdd2 (No. 43) | orthorhombic | 0.35 | 0.0195 | -4.461 | 7.02 |
| Pn-3m (No. 224) | cubic | 0.00 | 0.1897 | -4.291 | 6.58 |
| Cmcm (No. 63) | orthorhombic | 0.00 | 0.2563 | -4.224 | 6.18 |
| Cm (No. 8) | Monoclinic | — | — | — | 5.80 |
| I4/mmm (No. 139) | Tetragonal | — | — | — | 6.84 |
| Cm (No. 8) | Monoclinic | — | — | — | 6.30 |
| Cm (No. 8) | Monoclinic | — | — | — | 6.94 |
| Cm (No. 8) | Monoclinic | — | — | — | 6.89 |
| R3m (No. 160) | Trigonal | — | — | — | 4.79 |
| R3m (No. 160) | Trigonal | — | — | — | 5.90 |
| R3m (No. 160) | Trigonal | — | — | — | 6.07 |
| C2 (No. 5) | Monoclinic | — | — | — | 8.29 |
Uses
Applications
Where Silver(III) oxide is used.
Electrochemical researchChemical synthesisBattery technology development
Reference
Frequently Asked Questions
Common questions about Silver(III) oxide, answered from cross-validated data.
What is Ag2O3?
Silver(III) oxide is an unstable inorganic compound characterized by its high oxidation state. It is primarily studied for its potential roles in advanced electrochemical systems and specialized chemical synthesis.
More questions
What is Ag2O3 used for?
Silver(III) oxide (Ag2O3) is used in electrochemical research, chemical synthesis, and battery technology development.
What is the band gap of Ag2O3?
Silver(III) oxide (Ag2O3) has a DFT-computed band gap of 0.35 eV across 57 reported structures.
Is Ag2O3 a metal, semiconductor, or insulator?
With a band gap up to 0.35 eV it is a semiconductor.
Is Ag2O3 thermodynamically stable?
Silver(III) oxide (Ag2O3) has a lowest energy above hull of 0.019 eV/atom (near hull (likely stable)).
What is the crystal structure of Ag2O3?
The lowest-energy reported polymorph of Silver(III) oxide (Ag2O3) is orthorhombic symmetry, space group Fdd2 (No. 43).
What is the density of Ag2O3?
The computed density of the ground-state structure of Silver(III) oxide (Ag2O3) is 7.02 g/cm³.
How many polymorphs of Ag2O3 are known?
57 structures of Ag2O3 are reported across 4 databases, spanning 14 distinct space groups.
What elements does Ag2O3 contain?
Silver(III) oxide (Ag2O3) contains Ag and O (2 elements).
Where does the data for Ag2O3 come from?
Ag2O3 data is cross-referenced from materials_project, mpaloe.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
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