KO3S
KO3S is a wide-gap insulating inorganic compound that is considered a viable candidate for experimental synthesis.
About KO3S
KO3S is an insulating inorganic compound characterized by a wide electronic band gap. Its composition suggests a specialized role in solid-state chemistry where electrical conductivity must be strictly limited.
As a material identified as near-hull, it is considered a promising candidate for experimental synthesis. The existence of multiple structural variations across databases highlights its complex potential for discovery in material science.
Key Properties
Cross-validated computational properties for KO3S, 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 KO3S, 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. |
|---|---|---|---|---|---|
| P321 (No. 150) | trigonal | 5.00 | 0.0108 | -6.098 | 2.23 |
| P321 (No. 150) | trigonal | 4.98 | 0.0129 | -6.096 | 2.32 |
| — | — | — | — | — | 2.61 |
| — | — | — | — | — | 2.16 |
| — | — | — | — | — | 2.61 |
| — | — | — | — | — | — |
Applications
Where KO3S is used.
Frequently Asked Questions
Common questions about KO3S, answered from cross-validated data.
What is KO3S?
KO3S is a wide-gap insulating inorganic compound that is considered a viable candidate for experimental synthesis.
What is KO3S used for?
What is the band gap of KO3S?
Is KO3S a metal, semiconductor, or insulator?
Is KO3S thermodynamically stable?
What is the crystal structure of KO3S?
What is the density of KO3S?
How many polymorphs of KO3S are known?
What elements does KO3S contain?
Where does the data for KO3S come from?
How It Compares
As a unique inorganic compound currently categorized on its own, KO3S represents a distinct structural arrangement within the broader landscape of potassium-oxygen-sulfur systems, serving as a focal point for future exploration of its specific phase stability.
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).
- alexandria — Data from alexandria.
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