KTaO3
Potassium tantalate · KTO
KTaO3 is a stable, semiconducting perovskite oxide widely used as a substrate for thin-film growth and fundamental research in oxide electronics.
About Potassium tantalate
Potassium tantalate is a prominent member of the perovskite oxide family, characterized by its robust thermodynamic stability. As a semiconducting material, it is highly valued for its structural integrity and its role as a high-quality substrate in thin-film research and optoelectronic device development.
This compound is frequently utilized in fundamental condensed matter physics studies due to its unique dielectric properties and potential for hosting two-dimensional electron gases. Its stability on the convex hull makes it a reliable platform for exploring complex oxide interfaces and quantum phenomena in layered materials.
Key Properties
Cross-validated computational properties for Potassium tantalate, aggregated across 2 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.
Synthesis Routes
Literature-extracted synthesis procedures targeting KTaO3.
Applications
Where Potassium tantalate is used.
Frequently Asked Questions
Common questions about Potassium tantalate, answered from cross-validated data.
What is KTaO3?
KTaO3 is a stable, semiconducting perovskite oxide widely used as a substrate for thin-film growth and fundamental research in oxide electronics.
What is KTaO3 used for?
What is the band gap of KTaO3?
Is KTaO3 a metal, semiconductor, or insulator?
Is KTaO3 thermodynamically stable?
How many polymorphs of KTaO3 are known?
How is KTaO3 synthesized?
What elements does KTaO3 contain?
Where does the data for KTaO3 come from?
How It Compares
Within the perovskite oxides class.
Unlike the magnetic or multiferroic perovskites such as LaMnO3 or BiFeO3, KTaO3 is primarily recognized for its wide-gap semiconducting behavior and utility as a dielectric substrate, positioning it closer to the insulating characteristics of LaAlO3 rather than the metallic behavior seen in LaNiO3.
Related Compounds
Other Perovskite Oxides in the database.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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