InNaO2
InNaO2 is a stable, semiconducting oxide material utilized in the study and development of transparent electronic and optoelectronic devices.

About InNaO2
InNaO2 is a semiconducting oxide that maintains thermodynamic stability on the convex hull. As a member of the transparent conducting oxide family, it is characterized by its electronic structure which balances optical transparency with electrical conductivity, making it a subject of interest for thin-film device research.
This material is increasingly relevant in the development of next-generation electronic components. Its presence in multiple structural databases highlights its potential utility in specialized semiconductor applications where stable, transparent materials are required for high-performance device integration.
Key Properties
Cross-validated computational properties for InNaO2, 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 InNaO2, 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 | 1.91 | 0.0000 | -5.478 | 5.70 |
| I41/amd (No. 141) | — | — | — | — | — |
| — | — | — | — | — | 5.42 |
| — | — | — | — | — | 5.33 |
Applications
Where InNaO2 is used.
Frequently Asked Questions
Common questions about InNaO2, answered from cross-validated data.
What is InNaO2?
InNaO2 is a stable, semiconducting oxide material utilized in the study and development of transparent electronic and optoelectronic devices.
What is InNaO2 used for?
What is the band gap of InNaO2?
Is InNaO2 a metal, semiconductor, or insulator?
Is InNaO2 thermodynamically stable?
What is the crystal structure of InNaO2?
What is the density of InNaO2?
How many polymorphs of InNaO2 are known?
What elements does InNaO2 contain?
Where does the data for InNaO2 come from?
How It Compares
Within the transparent conducting oxides class.
Within the diverse family of transparent conducting oxides, InNaO2 occupies a distinct niche compared to more widely utilized siblings like ZnO or BaSnO3. While ZnO is a foundational material in the industry, InNaO2 offers a unique structural alternative, providing researchers with different lattice configurations and electronic properties that complement the established performance profiles of complex oxides like ZnGa2O4 or CaIn2O4.
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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