InKO2

This compound is a complex oxide containing indium and potassium. It is primarily utilized in solid-state chemistry research for investigating the structural and electronic properties of ternary metal oxides.

Crystal structure of InKO2 (trigonal, R-3m (No. 166))
Ground-state structure · Materials Project
Overview

Key Properties

Cross-validated computational properties for InKO2, aggregated across 3 databases.

Band Gap

2.08 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

4
3 databases, 2 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for InKO2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
R-3m (No. 166)trigonal2.080.0000-5.3585.30
Cmcm (No. 63)
4.55
5.14
Uses

Applications

Where InKO2 is used.

Solid-state chemistry researchMaterials science studiesPrecursor for advanced ceramic materials
Reference

Frequently Asked Questions

Common questions about InKO2, answered from cross-validated data.

What is InKO2?

This compound is a complex oxide containing indium and potassium. It is primarily utilized in solid-state chemistry research for investigating the structural and electronic properties of ternary metal oxides.

More questions
What is InKO2 used for?
InKO2 is used in solid-state chemistry research, materials science studies, and precursor for advanced ceramic materials.
What is the band gap of InKO2?
InKO2 has a DFT-computed band gap of 2.08 eV across 4 reported structures.
Is InKO2 a metal, semiconductor, or insulator?
With a band gap up to 2.08 eV it is a semiconductor.
Is InKO2 thermodynamically stable?
Yes — InKO2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of InKO2?
The lowest-energy reported polymorph of InKO2 is trigonal symmetry, space group R-3m (No. 166).
What is the density of InKO2?
The computed density of the ground-state structure of InKO2 is 5.30 g/cm³.
How many polymorphs of InKO2 are known?
4 structures of InKO2 are reported across 3 databases, spanning 2 distinct space groups.
What elements does InKO2 contain?
InKO2 contains In, K, and O (3 elements).
Where does the data for InKO2 come from?
InKO2 data is cross-referenced from materials_project, nomad, omat24.
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Related Compounds

Other Transparent Conducting Oxides in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
  • omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).

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