InO

Indium monoxide is a binary inorganic compound consisting of indium and oxygen. It is primarily studied in the context of thin-film research and as a precursor or intermediate phase in the synthesis of more stable indium oxide materials.

Crystal structure of InO (hexagonal, P-6m2 (No. 187))
Ground-state structure · Materials Project
Overview

Key Properties

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

Band Gap

0.40 eV
Range across DFT structures

Energy Above Hull

0.226 eV/atom
Best (lowest) across sources

Stability

Above hull
1 DFT source

Structures

231
3 databases, 33 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of InO. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: medium

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

1
materials_project

Space Group Consensus

All match
Crystallography

Reported Structures

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

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
P-6m2 (No. 187)hexagonal0.400.2263-5.2892.65
P63mc (No. 186)hexagonal0.000.3106-5.2056.05
P-1 (No. 2)Triclinic5.33
Cm (No. 8)Monoclinic8.82
P63/mmc (No. 194)Hexagonal6.27
Cmc21 (No. 36)Orthorhombic6.05
P-1 (No. 2)Triclinic6.75
P63/mmc (No. 194)Hexagonal5.64
C2/m (No. 12)Monoclinic8.85
P63/mmc (No. 194)Hexagonal8.88
P21/m (No. 11)Monoclinic4.69
P-1 (No. 2)Triclinic5.95
Uses

Applications

Where InO is used.

Materials science researchSemiconductor thin-film studiesChemical vapor deposition precursors
Reference

Frequently Asked Questions

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

What is InO?

Indium monoxide is a binary inorganic compound consisting of indium and oxygen. It is primarily studied in the context of thin-film research and as a precursor or intermediate phase in the synthesis of more stable indium oxide materials.

More questions
What is InO used for?
InO is used in materials science research, semiconductor thin-film studies, and chemical vapor deposition precursors.
What is the band gap of InO?
InO has a DFT-computed band gap of 0.40 eV across 231 reported structures.
Is InO a metal, semiconductor, or insulator?
With a band gap up to 0.40 eV it is a semiconductor.
Is InO thermodynamically stable?
InO has a lowest energy above hull of 0.226 eV/atom (above hull).
What is the crystal structure of InO?
The lowest-energy reported polymorph of InO is hexagonal symmetry, space group P-6m2 (No. 187).
What is the density of InO?
The computed density of the ground-state structure of InO is 2.65 g/cm³.
How many polymorphs of InO are known?
231 structures of InO are reported across 3 databases, spanning 33 distinct space groups.
What elements does InO contain?
InO contains In and O (2 elements).
Where does the data for InO come from?
InO data is cross-referenced from materials_project, mpaloe, cod.
Explore

Related Compounds

Other Wide-Bandgap Oxide Semiconductors in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • mpaloe — Data from mpaloe.
  • cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).

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