KO2Tl
KO2Tl is a stable, semiconducting inorganic compound composed of potassium, thallium, and oxygen.
About KO2Tl
KO2Tl is a complex inorganic compound featuring potassium, thallium, and oxygen. As a thermodynamically stable phase residing on the convex hull, it represents a robust structural configuration within its chemical system.
Exhibiting semiconducting electronic characteristics, this material is of significant interest for researchers investigating electronic structure and solid-state chemistry. Its existence across multiple reported structures highlights its structural versatility and importance in fundamental materials science.
Key Properties
Cross-validated computational properties for KO2Tl, 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 KO2Tl, 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. |
|---|---|---|---|---|---|
| R-3m (No. 166) | trigonal | 0.88 | 0.0000 | -4.734 | 7.26 |
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Applications
Where KO2Tl is used.
Frequently Asked Questions
Common questions about KO2Tl, answered from cross-validated data.
What is KO2Tl?
KO2Tl is a stable, semiconducting inorganic compound composed of potassium, thallium, and oxygen.
What is KO2Tl used for?
What is the band gap of KO2Tl?
Is KO2Tl a metal, semiconductor, or insulator?
Is KO2Tl thermodynamically stable?
What is the crystal structure of KO2Tl?
What is the density of KO2Tl?
How many polymorphs of KO2Tl are known?
What elements does KO2Tl contain?
Where does the data for KO2Tl come from?
How It Compares
As a unique compound within its specific chemical system, KO2Tl serves as a primary reference point for understanding the interplay between alkali metals, heavy post-transition metals, and oxygen in stable crystalline lattices.
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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