KAgO2

KAgO2 is a stable semiconducting ternary oxide containing potassium, silver, and oxygen.

AgKO
Crystal structure of KAgO2
Ground-state structure · Materials Project
Overview

About KAgO2

KAgO2 is a ternary oxide composed of potassium, silver, and oxygen. As a thermodynamically stable compound residing on the convex hull, it represents a robust structural arrangement within its chemical system. Its electronic character is defined as semiconducting, making it an interesting candidate for studies involving charge transport and electronic behavior in complex oxides. The material is well-documented, with numerous reported structures across major databases, reflecting significant interest in its crystallographic diversity. Researchers investigate this compound to better understand the interplay between alkali metals and transition metal oxides in solid-state chemistry. Its stability suggests potential for synthesis and integration into functional material frameworks where predictable electronic properties are required.

At a glance

Key Properties

Cross-validated computational properties for KAgO2, aggregated across 3 databases.

Band Gap

0.62–1.19 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

15
3 databases, 3 space groups
Reference

Frequently Asked Questions

Common questions about KAgO2, answered from cross-validated data.

What is KAgO2?

KAgO2 is a stable semiconducting ternary oxide containing potassium, silver, and oxygen.

More questions
What is the band gap of KAgO2?
KAgO2 has a DFT-computed band gap of 0.62–1.19 eV across 15 reported structures.
Is KAgO2 a metal, semiconductor, or insulator?
With a band gap up to 1.19 eV it is a semiconductor.
Is KAgO2 thermodynamically stable?
Yes — KAgO2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of KAgO2 are known?
15 structures of KAgO2 are reported across 3 databases, spanning 3 distinct space groups.
What elements does KAgO2 contain?
KAgO2 contains Ag, K, and O (3 elements).
Where does the data for KAgO2 come from?
KAgO2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct ternary oxide, KAgO2 occupies a unique position in the landscape of silver-based alkali oxides, serving as a foundational example of stable stoichiometry in this chemical family.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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